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Arm & Hammer Litter Double Duty Clumping Litter

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Arm & Hammer Double Duty Clumping Litter eliminates both types of odors for Advanced Odor Control. Its breakthrough formula destroys urine and feces odors instantly and helps keep your home smelling fresh and clean.

Key Benefits

  • Powerful moisture-activated baking soda crystals boosted with feces odors neutralizers destroy urine and feces odors immediately on contact.
  • Rock-solid clumps let you remove the source of odors easily plus a fresh scent refreshes the litter box each time your cat uses the box.
  • 99% dust free and low- tracking so your home stays cleaner and healthier, longer.
  • Easy-pour, no spill spout to make refilling the litter box a breeze.
  • Made in the USA!


Please wash hands thoroughly after handling used cat litter. We want to remind pregnant women and those with suppressed immune systems that a parasite sometimes found in cat feces can cause toxoplasmosis.

See all items by Arm & Hammer Litter

  • Item Number
  • Brand
    Arm & Hammer
  • Litter & Bedding Type
  • Litter Feature
    Clumping, Odor Control, Scented


  • Fill a clean, empty litter box with 3-4 inches of ARM & HAMMER DOUBLE DUTY Clumping Litter.
  • Litter forms rock-solid clumps on contact with urine and eliminates odors. Remove clumps and solid waste daily to keep the rest of litter fresh.
  • Add more ARM & HAMMER ULTRA LAST DOUBLE DUTY Clumping Litter to replace what you have scooped out and maintain a depth of 3-4 inches. Once a month, empty the litter box.
  • Dispose of used litter in trash. Do not flush or put in drains.

Frequently Asked Questions

Where should the product be stored?

Store in a dry place if clumping cat litter comes in contact with water, clumps will form. But it will not be affected by humidity.

Can I use this in animal cages or in litter boxes for pets other than cats?

No, it is not recommended.

Is ARM & HAMMER™ Cat Litter antibacterial?

No. The litter box is a dirty place. Each time your cat uses the litter box, feces and urine introduce odor-causing bacteria. Although the product is not antibacterial, ARM & HAMMER™ Cat Litter utilizes genuine ARM & HAMMER™ Baking Soda to eliminate odors caused by bacteria.

Is the carton recyclable?

Yes, The package is made from 100% recycled materials with 35% from post consumer sources. It is recyclable in areas that accept this type of carton. Please check with your local recycling center for details.

Does the product contain animal by-products?


Does ARM & HAMMER™ Cat Litter contain Baking Soda?

Yes, all ARM & HAMMER™ Cat Litters contain pure ARM & HAMMER™ Baking Soda.

Should I use ARM & HAMMER™ Cat Litter Deodorizer in conjunction with ARM & HAMMER™ Clumping Cat Litter?

It is not necessary to use ARM & HAMMER™ Cat Litter Deodorizer with ARM & HAMMER™ Cat Litter but using both will give you an extra boost of freshness.

Why is ARM & HAMMER™ Cat Litter Deodorizer still needed?

ARM & HAMMER™ Cat Litter Deodorizer is designed to eliminate litter box odors that ordinary scoopable and clay litters can't. The powder formula also prevents the litter from sticking to the bottom of the box, making litter box clean up even easier.

Is ARM & HAMMER™ Cat Litter dust-free?

As the package indicates, all ARM & HAMMER™ Cat Litters are 99% dust-free.

Does ARM & HAMMER™ Cat Litter track?

As with any litter, it is possible some particles may scatter outside the box when the cat uses or leaves the box. However, unlike traditional clay litters, clumping litter should not get muddy in the litter box so your cat will not leave muddy footprints or tracks outside the litter box.

What is toxoplasmosis?

Toxoplasmosis is a condition caused by a parasite sometimes found in cat feces. Wash your hands thoroughly after handling used cat litter. Pregnant women and those with suppressed immune systems should be especially careful to always do so. Unused ARM & HAMMER™ Cat Litter in its original package does not contain these parasites.

What is the pH of ARM & HAMMER™ Cat Litter?

All ARM & HAMMER™ Cat Litters are slightly alkaline.

Is ARM & HAMMER™ Cat Litter safe for pets including kittens?

We are extremely confident of the safety of ARM & HAMMER™ Cat Litter, when used as directed. During its development, ARM & HAMMER™ clumping Cat Litter was evaluated by numerous consumers (and their cats) with no adverse effects. Additionally the safety of baking soda is well known and documented.

Can ARM & HAMMER™ Cat Litter cause Feline Urinary Syndrome (also known as a urinary tract blockage)?

Feline Urinary Syndrome (FUS) is a common condition that especially affects male cats. Although there are many theories on what causes or contributes to FUS, there is no indication that clumping (or traditional clay) cat litter causes FUS in cats or kittens.

What is the source of ARM & HAMMER™ Cat Litter ingredients?

The main ingredients in ARM & HAMMER™ Cat Litter are derived from mineral and plant sources.

Does ARM & HAMMER™ Cat Litter expire after a period of time? What is the shelf life?

ARM & HAMMER™ Cat Litter does not lose its effectiveness over time.

How long does a box or bag of ARM & HAMMER™ Cat Litter last?

The amount used varies depending on the frequency of litter box usage as well as the number of cats in your household.

How often should I change the Cat Litter in the litter box?

The frequency with which your cat uses the litter box and the number of cats that use the litter box will determine how often the litter box should be changed. Some consumers change their litter box on a regular schedule (every few days, or weekly, or on trash day, etc.), others change it when it looks wet or when odor is noticeable. Remember, as your cat uses the litter box, scoop out soiled clumps and solids. After you remove the odor clumps and solids, replace the discarded litter with a sprinkling of fresh litter, making sure to maintain at least 3-4 inches of litter in the box.

What if my cat eats the litter?

It is not normal for a cat to eat cat litter and it may be a sign of illness. Your veterinarian should be contacted immediately. (Please be assured that should a small amount be ingested during normal grooming, your cat's intestinal tract should naturally move the material through the cat's system.)

What if my dog eats the litter?

Although dogs sometimes eat cat litter and other foreign objects, you should remove the litter box from your dog's reach and contact your veterinarian immediately. Ingestion of litter and foreign objects may indicate illness.

What is Clumping Litter or Scoopable Litter? How does it differ from traditional Clay Litters?

Clumping or scoopable litters utilize the "clumping" properties of sodium bentonite, a naturally derived special type of clay, to control litter box odors. This special type of clay uses the moisture it absorbs to bond soiled litter particles into clumps for easy removal and disposal. Litter boxes using clumping litters can be cleaned by removing only the soiled litter and sprinkling a new layer of clumping litter in the box. The box is fresh for use without the unpleasant task of emptying, washing and drying!

Ordinary clay litters can absorb moisture, but cannot isolate it for easy removal. Since soiled litter is a source of odor-causing bacteria, clay litter must be completely changed frequently to prevent odor build-up. This involves discarding the entire contents of the litter box, washing and drying the box, and replacing the litter-a messy and smelly task...

Cats love a clean litter box and nothing is cleaner than fresh clumping litter. Cats think clumping litter is the best thing since catnip...we think you'll agree!

Can ARM & HAMMER™ Cat Litter be used for traction during icy conditions?

No. ARM & HAMMER™ Cat Litter, as well as other clumpable or scoopable litters, should not be utilized for ice traction.

How does ARM & HAMMER™ Double Duty Clumping Litter differ from other ARM & HAMMER™ Cat Litter?

ARM & HAMMER™ Double Duty is the only clumping litter with a formula that combines moisture activated ARM & HAMMER™ Baking Soda crystals with urine and feces odor neutralizers to destroy both overpowering odors on contact.

What are the ingredients in ARM & HAMMER™ Double Duty Clumping Litter?

ARM & HAMMER™ Double Duty contains clay for absorbency, clumping and deodorization. It also contains powerful compacted ARM & HAMMER™ Baking Soda crystals for deodorization, as well as a fresh scent fragrance that is activated when it comes in contact with moisture.

Is ARM & HAMMER™ Double Duty scented or unscented?

ARM & HAMMER™ Double Duty has a fresh scent that refreshes every time your cat uses the litter box.

Can ARM & HAMMER™ Double Duty Clumping Litter be used in multiple cat households?

Yes, ARM & HAMMER™ Double Duty’s powerful feces odor neutralizers are designed to work for multiple cats.

How should I dispose of the litter?

You should dispose of the used litter in the trash. Do not flush litter in the toilet or place it in the drain.

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Customer Reviews

409 reviews 409 Reviews 4.4 out of 5 Stars

88% Recommend

88% of reviewersrecommend this product

4.4 / 5
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  • Love chewy

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    I cannot believe that I can place an order in my iPhone one day and go home from work the very next day and my Chewy order is on my porch. No more carrying litter from shelf to check out to car and into house. Order and carry from porch to litter box. Sweeeeeet. No more running out of litter, set up auto delivery. Prices are great! I LOVE CHEWY.COM.

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  • Horrible litter

    By on

    Chewy is a great service, but this litter is the worst. My cats urine goes to the bottom of the litter box even if I put a good amount of the litter in the box, and then it's so hard to scoop the litter out. I have used other brands and it was so easy, this litter is like pebbles from your backyard or something. Do not buy this for your cats!

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  • No good for clumping or order

    By on

    Tried this for 3 boxes because it was on sale. The urine does not clump well and so clumps crumble, leaving small urine soaked clay litter in the cat litter box. Obviously that affects the stink from the box over a few weeks. I have two cats using 1 litter box and this is not the litter for us. Trying something else.

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  • My cat loves double duty!

    By on

    He is only one cat, but Double Duty keeps his litter box clean-smelling and clumps really well. He is a good kitty and always goes in the litter box. I got a great price from Chewy and it is so convenient to have my cat food and litter shipped to me for a 3-month supply for free!

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  • Not a hit with my cat

    By on

    2 of my cats used this litter just fine. One of my cats refused to use it at all. He resorted to using towels, clothes or anything else but the litter. I had to switch immediately to the litter I had been buying for years. I think it's because this litter has a very strong odor and my cat just didn't like it.

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  • Best Overall Litter

    By on

    This litter is perfect for covering both urine and feces odors. If you are gone for the weekend, no problem...you can count on this litter to handle it. Great scent - not overpowering or too obvious. Easy to scoop. I highly recommend this litter to anybody based on the above plus its great price per pound.

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  • Smelly litter

    By on

    I just recently took in three kittens so I go through a lot of litter. I bought this because it was a good price for a 40oz box. It does not absorb any of the odor at all. I clean the litter 4 plus times a day and my house still has a horrible odor constantly. Very disappointed.

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  • Love this litter

    By on

    Have used this cat litter for a while and absolutely love it. Soft on my cats paws and they don't seem to kick much out of their box. There isn't hardly any debris that sticks to the box with this litter. Does a great job.

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  • Not recommended

    By on

    After reading so many good reviews I thought to try this one but it was just awful. It doesnt clumps and it's very hard to clean. My kittens started making poop mess after using this litter. I had to go back to the old one.

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  • One of the best litter

    By on

    This cat litter is a life saver. Because after 7 days of being used. I just have to add baking soda to yhe litter. And it gives me 7 more days of being used. And best of all my house doesn't smell like cats. Yeahhhhhbbb

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