Last Updated: October 23, 2020

Best Flushable Cat Litter

Best Flushable Cat Litter

When committing to life outside the box with a flushable litter, you’ll want a product your cat will actually use that won’t damage your plumbing or septic system. After hours of research, World’s Best Multi-Cat Unscented Clumping Corn Cat Litter has emerged at the front of the pack as our winner. This formula is soft on cat paws, easy to dissolve, and effective at controlling odor and mess.

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Best Overall
World's Best Multi-Cat Unscented Clumping Cat Litter
World's Best Multi-Cat Unscented Clumping Cat Litter Best Overall
$27
Review manufacturer chewy
on chewy
$27
Review manufacturer amazon
on amazon
9/10
  • What we Like
  • Highly rated for multi-cat households
  • Lightweight litter doesn’t track out of the box
  • Forms tight, easy-to-scoop clumps
  • Superior odor control without artificial scents added
  • What we Dislike
  • Produces more dust than litters made of silica
Product Details
Type of Litter Corn
Clumping

Scented

Our Review

This clumping corn litter might, indeed, be the world’s best flushable litter. Customers who have tried alternative options often return to World’s Best Multi-Cat Unscented Clumping Corn Litter because of its superior performance in households with more than one cat. World’s Best forms tight clumps on contact before an ammonia smell can set in and lead to a messy box. These clumps are easy to scoop right into your toilet where they can be flushed safely into a variety of septic systems. The natural, compressed corn formula is free of silica dust and environmentally friendly, but unlike a few others on our list, World’s Best doesn’t track out of the box. This is our clear winner because its natural, unscented odor control keeps both cats and their humans happy.

Best Silica Gel
Pretty Litter Silica Gel Non-Clumping Litter
Pretty Litter Silica Gel Non-Clumping Litter Best Silica Gel
$0
Review manufacturer prettylitter
on prettylitter
9/10
  • What we Like
  • Potential urinary health problems indicated when litter changes colors
  • Highly absorbent for a flushable litter
  • Effective odor control
  • What we Dislike
  • Litter dehydrates solid waste instead of forming easier-to-scoop clumps
  • More expensive than other flushable litters
  • Smaller bag than other brands and might not last for the full monthly subscription
Product Details
Type of Litter Silica Gel Crystals
Clumping

Scented

Our Review

PrettyLitter only may be purchased online through a subscription. Made from silica gel crystals that absorb liquid, this litter was designed by veterinarians to change colors to indicate a variety of bladder and kidney illnesses. PrettyLitter rates highly for odor control and poses the lowest risk of harm to your cat of all the flushable litters if accidentally ingested because the crystals don’t expand like other litter types. Customers also can enjoy smaller, lighter bags of this lightweight litter designed to last a full month. But without clumping action, cats can quickly saturate the crystals if they urinate in the same spot daily. PrettyLitter is an ideal option for cats prone to urinary health problems, kittens prone to eating litter, and for owners who aren’t the best at frequent scooping. However, this litter can be a little uncomfortable for delicate paws, so steer clear if your cat is declawed or suffers from skin sensitivity.

Swheat Scoop Multi-Cat Unscented Clumping Wheat Cat Litter
Swheat Scoop Multi-Cat Unscented Clumping Wheat Cat Litter
$28
Review manufacturer chewy
on chewy
$29
Review manufacturer amazon
on amazon
8/10
  • What we Like
  • Gentle formula is ideal for kittens and post-surgical cats
  • Environmentally friendly formula can be composted, unlike traditional clay litters
  • Low-dust formula safe for both cats and ferrets with sensitive respiratory systems
  • What we Dislike
  • Clumps fall apart more easily than other brands
  • Poor odor control
  • Dirty litter can stick to the bottom of the box if not scooped quickly enough
Product Details
Type of Litter Wheat Starch
Clumping

Scented

Our Review

sWheat Scoop is an eco-friendly litter made from wheat starches. This option is both flush-friendly and 100% biodegradable, which works well for those who prefer composting. The wheat starches are gentle for cats recovering from surgical wounds as well as delicate kittens, while the low-dust properties are attractive to both cat and ferret owners looking to protect their pets’ fragile respiratory systems. sWheat Scoop is also recommended for multi-cat homes and shelter environments. In return for its versatility, buyers will need to tolerate more odor breakthrough than other brands and clumps more likely to break apart.

Okocat Super Soft Clumping Wood Unscented Cat Litter
Okocat Super Soft Clumping Wood Unscented Cat Litter
$14
Review manufacturer chewy
on chewy
$14
Review manufacturer amazon
on amazon
8/10
  • What we Like
  • Works well with multiple cats
  • Great odor control
  • Gentle litter is soft on cat paws and easy on humans cleaning the box
  • What we Dislike
  • Lightweight litter is prone to tracking out of the litterbox
  • Dust production can lead to sneezing cats and messy surroundings
  • Less absorptive than OkoCat’s other litter options
Product Details
Type of Litter Wood Fiber
Clumping

Scented

Our Review

Okocat’s Super Soft Clumping Wood litter will soothe your guilty environmental conscience because it is made from sustainably sourced wood fiber. It’s also free of artificial fragrances, synthetic chemicals, toxic dyes, and GMOs. Users enjoy the natural scent reminiscent of the great outdoors, while the litter prevents enzymes from bonding with liquid and waste to prevent ammonia odor. Okocat is a great choice for multi-cat households, as well as declawed and arthritic cats, because the litter is lightweight. Be advised that in return for its gentle properties, this litter will track out of the box and produces more dust than some alternatives. Those familiar with Okocat’s regular litters will be disappointed that this product is less absorptive than their other offerings.

Next Gen Pet Products Cypress Fresh Unscented Clumping Wood Cat Litter
Next Gen Pet Products Cypress Fresh Unscented Clumping Wood Cat Litter
$43
Review manufacturer chewy
on chewy
$58
Review manufacturer amazon
on amazon
6/10
  • What we Like
  • Easy to clean off wooden floors without staining
  • Effective odor control
  • Lasts longer than other litter formulas
  • What we Dislike
  • Customers complain this doesn’t clump well
  • More expensive than some alternatives
  • Can’t be flushed in every septic system
Product Details
Type of Litter Wood/Green Tea Leaves
Clumping

Scented

Our Review

Next Gen Pet Products Cypress Wood Litter wins big on odor control, and its gentle properties make life easier for those with hardwood floors. Unfortunately, it doesn’t pass the biggest test of all for a flushable litter: the Cypress litter can’t be flushed in all septic systems. This litter is made from Japanese Hinoki wood and green tea leaves which both clump and fight bacterial growth, one of the leading causes of litterbox odor (the other is, of course, what comes out of your cat). Being a natural litter, it’s safe for both you and your cat with its low-dust formula. For those with older or fragile plumbing, you shouldn’t risk flushing this litter, but because of its small size, at least it is compostable.

Garfield Cat Litter Ultimate Clump, All Natural, Fast Clumping
Garfield Cat Litter Ultimate Clump, All Natural, Fast Clumping
$15
Review manufacturer amazon
on amazon
8/10
  • What we Like
  • Hypoallergenic litter is ideal for cats with allergies and skin issues
  • Small grain is easy on kitty’s delicate paws
  • Controls foul odors
  • What we Dislike
  • Litter can stick to cat’s paws and track out of the box
  • Sand-like consistency of the litter makes it hard to vacuum spillage around the box
Product Details
Type of Litter Cassava & Corn
Clumping

Scented

Our Review

The funny and furry namesake of this product would likely approve of Garfield’s Ultimate Multi-Cat Litter. Made of cassava and corn, this litter is hypoallergenic and has been recommended by vets for cats with allergies and skin conditions. The small-grain formula is gentle for sensitive paws and its white color helps to alert owners to a change in their cat’s health if the litter changes color after use. Garfield also can be safely flushed because the white grains are biodegradable and free of corrosive chemicals. The disadvantage to these small grains is their sand-like consistency that leads to a difficult clean-up around the box compared to larger litters, and those grains often travel out of the box by way of kitty’s paws.

Cat's Pride Premium Lightweight Fresh Scented Clumping Clay Cat Litter
Cat's Pride Premium Lightweight Fresh Scented Clumping Clay Cat Litter
$14
Review manufacturer chewy
on chewy
$18
Review manufacturer amazon
on amazon
5/10
  • What we Like
  • Lightweight litter is easy to scoop and flush
  • Added scent keeps the litterbox area smelling fresh
  • What we Dislike
  • Hard to open package lid
  • Dark, fine grain visibly tracks over floors
  • Clumps can break apart during scooping
Product Details
Type of Litter Clay
Clumping

Scented

Our Review

Cat’s Pride might be more familiar to your cat because its litter is clay-based, unlike most flushable litters. This product ranks high for odor control because it has been lightly scented and keeps not just the box, but the surrounding room smelling fresh for longer than some competitors. While it is clay-based, Cat’s Pride is a lightweight litter that is easy to transport and scoop. Unfortunately, the flushing process isn’t so easy – users complain that the clumps stick to the toilet and don’t make it down the pipes. There are also reports of shoddy packaging that make it difficult to open the lid, and the dark nature of this product can lead to track stains on surrounding floors. Consider alternatives if you’re not up for the hassle.

Rufus & Coco WeeKitty Unscented Clumping Corn Cat Litter
Rufus & Coco WeeKitty Unscented Clumping Corn Cat Litter
$20
Review manufacturer amazon
on amazon
7/10
  • What we Like
  • Soiled litter doesn’t stick to the sides or bottom of the box
  • Small pellets are easy to scoop
  • Absorbs urine and related odors well
  • What we Dislike
  • Cats might not like the thick pellets
  • Clean pellets can become contaminated and wasted while scooping out dirty pellets
  • Soiled litter needs to be changed frequently to avoid odor
Product Details
Type of Litter Corn
Clumping

Scented

Our Review

Rufus & Coco has produced a long-lasting, biodegradable litter made of clumping corn pellets that are easy to scoop without worrying about clumps sticking to the litter pan. Better yet, this mulchable litter breaks down when immersed in liquid, so it’s safe to flush in every septic system. WeeKitty is reported to have no ammonia smell after five minutes in laboratory testing, and users agree that this litter absorbs both odors and urine well. The thick pellets might not be enjoyed by your cat, however, and can cause more litter waste because clean pellets get scooped up with the contaminated ones.

Best Wood-Based
Weruva Hinoki Wood & Green Tea Cat Litter
Weruva Hinoki Wood & Green Tea Cat Litter Best Wood-Based
$26
Review manufacturer amazon
on amazon
7/10
  • What we Like
  • Soiled litter doesn’t stick to the sides or bottom of the box
  • Small pellets are easy to scoop
  • Absorbs urine and related odors well
  • What we Dislike
  • Cats might not like the thick pellets
  • Clean pellets can become contaminated and wasted while scooping out dirty pellets
  • Soiled litter needs to be changed frequently to avoid odor
Product Details
Type of Litter Wood & Green Tea
Clumping

Scented

Our Review

If you have a delicate nose, you’ll enjoy Weruva’s Hinoki Wood & Green Tea offering. Made of Japanese Hinoki Wood, green tea, and potato starch as a clumping agent, this litter is hypoallergenic and contains a natural tea scent that won’t scare off kitty. This litter is lightweight and forms solid clumps with low dust but does require a wide-slatted scoop to gather pellets. Beware that the wood cannot be flushed in all septic systems and it will involve extra vacuuming to keep floors free of tracked pellets. Some cats are not comfortable with the large pellets and might prefer softer-textured litter.

Best Pellet-Based
Feline Fresh Instant Odor Control Pine Cat Litter
Feline Fresh Instant Odor Control Pine Cat Litter Best Pellet-Based
$25
Review manufacturer amazon
on amazon
8/10
  • What we Like
  • Works well in multi-cat environments
  • Users enjoy the natural smell of this litter
  • Pellets are sterile and safe for kittens as well as adult cats
  • What we Dislike
  • Small pellets can fall through slats in large litter scoops
  • Powder residue can cling to cat’s paws
Product Details
Type of Litter Pine
Clumping

Scented

Our Review

Do you prefer a natural woodsy scent to artificial perfumes? Feline Fresh might be the choice for you. This natural pine litter comes in pellets that are sterile and safe for delicate kittens and adult cats recovering from surgery. This litter is a shelter favorite due to its low cost, natural odor control, and long-lasting reputation (certainly longer than clay litters). The pine pellets are also ideal for liquid absorption. If you are using this litter in your home, you’ll need a scoop with smaller slats so the pellets don’t escape. Some buyers have complained that their cat’s paws pick up powder residue from the box as well.

PetNF Tofu Cat Litter
PetNF Tofu Cat Litter
$16
Review manufacturer amazon
on amazon
6/10
  • What we Like
  • Low-dust formula
  • Zero odors thanks to Double Shot Deodorization - Activated Charcoal & Natural Pea Flavor
  • Quickly absorbs liquid waste
  • What we Dislike
  • Smaller size packages and more expensive than some comparable brands
  • Not as effective in multi-cat homes
  • Pellets don’t cover feces effectively
Product Details
Type of Litter Tofu
Clumping

Scented

Our Review

This tofu-based litter from PetNF is safe if ingested and ready to fight foul odors: activated charcoal mixed in with the pea fiber and corn starch naturally contain litterbox smells. Its natural base is also environmentally AND septic system friendly. Consumers are pleased with its low dust formula, strong clumping ability, and easy scooping. But PetNF litter comes in smaller-sized packages at a greater expense than alternatives and does not perform well in multi-cat environments. Considering these pellets reportedly work well on urine only, that would leave you – and your cat – up poo’s creek.

Bolux Flushable Cat Litter
Bolux Flushable Cat Litter
$21
Review manufacturer amazon
on amazon
6/10
  • What we Like
  • Litter dissolves in water instantly to prompt safe flushing
  • No-dust formula
  • Works well for those litterbox-averse guardians who are toilet-training their cats
  • What we Dislike
  • Tofu base mimics food and several users found their kittens eating litter
  • Small package might not be enough to fill large litterboxes
Product Details
Type of Litter Tofu
Clumping

Scented

Our Review

Are you looking to buy a flushable litter to use while toilet-training your cat? Bolux gets high marks for attracting cats learning to go potty like a champ. This tofu-based litter dissolves quickly in water and is safe for every septic system. It also leaves little dust to make a mess around your toilet (or box, if you’re old-school). The litter comes in rod-shaped pellets with activated carbon absorption technology designed to contain foul smells without triggering allergies. Bolux users did report that this litter has the unfortunate side effect of confusing kittens into thinking it’s food, and the small package size might not produce enough litter to fill up larger litterboxes.

Kittywoo Tofu Cat Litter
Kittywoo Tofu Cat Litter
$17
Review manufacturer amazon
on amazon
7/10
  • What we Like
  • Keeps cats’ paws clean of litter residue
  • Clumps disintegrate in water to easily flush
  • Natural plant ingredients are safe for kitties
  • What we Dislike
  • Natural smell of the pellets is offensive to some users
  • May not last as long as traditional litters
Product Details
Type of Litter Tofu
Clumping

Scented

Our Review

Kittywoo’s Tofu Cat Litter passes the flush test – this natural product dissolves in water, so it won’t corrode or plug up your septic system. Users are pleased by the low dust formula that provides for easier clean-up than some alternatives. The plant-based ingredients are also safe for kitty without clinging to his paws after litterbox use. On the other hand (or paw), Kittywoo doesn’t clump as strongly, and gets a low score on the odor scale because its natural scent can be off-putting. Each package lasts on average for two weeks, about half the time as most traditional litters.

CocoKitty Clumping Coconut Cat Litter
CocoKitty Clumping Coconut Cat Litter
$18
Review manufacturer amazon
on amazon
5/10
  • What we Like
  • Coconut base is a natural antimicrobial agent to resist growth of bacteria, mold and fungus
  • Environmentally conscious users can recycle litter waste in their gardens as a natural soil conditioner
  • The consistency of coconut pith is easy on cats’ paws and ideal for declawed cats
  • What we Dislike
  • Litter consistency makes it harder to scoop out waste
  • Litter can clog toilets and automatic litterboxes
Product Details
Type of Litter Coconut Pith
Clumping

Scented

Our Review

CocoKitty makes a great litter – just not a great flushable litter. The coconut base is great for the environment and a natural anti-microbial agent to resist health hazards and odors. It does not, however, flush well, and is prone to clogging both toilets and automatic litterboxes. If you don’t mind that part, you might enjoy CocoKitty as a natural soil conditioner. This litter is also ideal for declawed and arthritic cats because coconut pith is a naturally soft and spongy material. CocoKitty’s flushable option is also hypoallergenic and safe for asthmatic cats. Be careful not to pour too much litter into the box, or your cat will sink like its quicksand. Don’t overpour – with a consistency more filling than “regular” litters, cats may sink in too much. 

Better Way Eco Fresh Scented Clumping Clay Cat Litter
Better Way Eco Fresh Scented Clumping Clay Cat Litter
$16
Review manufacturer chewy
on chewy
5/10
  • What we Like
  • Virtually dust-free
  • Low-tracking formula is easier to clean outside of the box
  • Natural cat attractant added
  • What we Dislike
  • Not compatible with all septic systems
  • Dirty litter not cleaned quickly enough can cement to the sides or bottom of the box
  • Weak packaging is prone to tears and spills
Product Details
Type of Litter Clay
Clumping

Scented

Our Review

Better Way‘s Eco Fresh Scented Clumping Litter is made of white zeolite clay which naturally absorbs odors better than some others on our list. Clay litters also perform better in clumping, and Better Way is no exception. An added scent covers any remaining foul odor, and sanel, made from tree resin, acts as a cat attractant for working with training kittens and adult cats with avoidance issues. This formula is almost dust-free, low-tracking, and soft on declawed paws. But if you are looking to flush, there is, well, a better way than Better Way – this litter isn’t compatible with all septic systems.

 

 

Best Products Best Flushable Cat Litter
Product Name Best for Rate
World's Best Multi-Cat Unscented Clumping Cat Litter Best Overall 9
Pretty Litter Silica Gel Non-Clumping Litter Best Silica Gel 9
Weruva Hinoki Wood & Green Tea Cat Litter Best Wood-Based 7
Feline Fresh Instant Odor Control Pine Cat Litter Best Pellet-Based 8

How to Choose:

 Long have we dreamed of a day when we could stop bagging our cat’s smelly waste and trudging it out to the trash can on hot summer days or freezing winter nights. The litter industry has responded to popular demand with multiple so-called flushable litters ready to make you a happy owner again. How do you know if one is better than the other, and how do you know if it really is safe to flush?

Assess Your Septic System

 Did you know that not every litter labeled “flushable” truly is? Some litters may be used only with larger sewer systems and could pose a serious – and expensive – hazard to older pipes and/or septic tanks. Some clumping litters even can stick to buildup in your plumbing and cause clogs. Flushable litter also could cause damage to your toilet bowl because some products can be abrasive and cause scratching and staining.

Just because a litter can be flushed, doesn’t mean it’s always advisable. California requires all litter manufacturers to label packages with a warning against flushing litter because toxins can seep into waterways and harm marine life. Some outside cats are carriers for toxoplasmosis, which is dangerous to other animals and immunocompromised people and can survive in sewer systems even after treatment. If you’ve determined that you’re still willing to try flushing dirty litter, you might consider keeping cat feces out of the bowl.

Look into the age of your pipes and the makeup of your cesspool, septic tank, or sewer system before considering a flushable litter. When choosing your preferred litter, look for a product that can dissolve fully in water before it is flushed. Avoid pouring large amounts of litter into the toilet all at once and consider flushing more than once to go easier on your pipes.

Litter Material

Flushable litter is made from a variety of biodegradable materials including corn, wood, wheat, tofu, and some special clay formulas. These materials are environmentally friendly because they are natural and do not contain synthetic ingredients (in addition to eliminating bag waste in the first place). With natural ingredients, you will need to exercise caution in not letting wet litter grow mold, bacteria, or fungus that could harm not only your cat, but the humans in the household as well. Some materials are safer in avoiding this than others.

Clumping

 Most flushable litters form clumps for ease of scooping and flushing. While standard clay litters expand when damp, truly flushable litter is designed to disintegrate when immersed in water. If you choose a clumping litter, make sure to select a litter that forms clumps that dissolve. Strong clumps resistant to falling apart are great for keeping the litterbox clean but can be damaging to your septic system as we discussed above.

Scent and Odor Control

Let’s be honest – if a litter smells weird to your kitty, he’s not going in that box. As with regular litters, flushable litters come in a variety of materials, each with their own natural smell and/or added scents. You’ll need to find one that doesn’t offend your cat’s superior sense of smell. If you’re a true cat whisperer with more than one furry friend, you’ll want to consider a flushable litter that can handle the odors of multiple cats.

The litter will be under your nose, too, so you’ll want to find one that isn’t too perfumed if you’re allergic. Some litters contain natural odor controls like charcoal, and some are reported to be pleasant smelling because of natural ingredients like pine or green tea additives. Find a litter that can last a long time between scoop sessions if you hate litterbox odors even more than cleaning them.

Your Cat’s Preference

As with all cat litters, your cat gets the final say in which flushable litter you ultimately use. The texture of the litter plays a big role in how effective it will be – if it’s not comfortable, your cat won’t want to use it. This is even more important if you are training a kitten to use the box, working with an adult cat who has behavioral avoidance, or cohabitate with a declawed cat with sensitive paws. Similarly, a cat with allergies or respiratory illness will not want to use a box with a strong added scent or one that kicks up a lot of dust. Look for a litter that is soft, or in the event of a reluctant kitty, consider one designed to attract your cat.