Arm & Hammer Litter Baking Soda Double Duty Cat Litter Deodorizer, 30-fl oz, bundle of 2

Skip image gallery
Slide 1 of 4

$5.97 First Time Autoship Price
this order
Save 35% (up to $20) today when you set up Autoship. 
$9.18 Autoship Price
future orders
  • Get deliveries on your schedule
  • Skip, change, or cancel anytime
$9.18 Chewy Price
($0.15 /fl oz)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card + Free Shipping with code: WELCOME
In Stock
FREE 1-3 day delivery on first-time orders over $35
Free 365-day returns

No interest if paid in full in 6 months on PayPal purchases of $149+. .

About This Item

At a Glance

  • All Lifestages

Details

  • Designed to reduce litter box odors and keep litter stay fresh longer.
  • Add straight to litter box.
  • Use with almost any litter, including clay, scoopable or natural.
  • Moisture activated—refreshes each time your cat visits his box.
  • Arm & Hammer products have been used to keep just about everything fresh and clean for generations.

About Arm & Hammer Cat Litter Deodorizers

Arm & Hammer Cat Litter Deodorizers

Keep your litter box first-day fresh with Arm & Hammer Cat Litter Deodorizers. Made with Arm & Hammer Baking Soda Crystals to destroy tough odors on contact, each one features a moisture-activated scent that refreshes every time your cat uses the litter box. When used as directed with your cat’s regular litter, they can help lower litter box odor levels after 9 days to keep your home smelling fresher.

Eliminate Odors Instantly

The extra-strength, odor-eliminating formula destroys feces and urine odors on contact.

Stay Fresh for Longer

Deodorize your litter box and enjoy that new-litter scent for longer—this deodorizer can control odors for up to 9 days.

Prevent Litter Sticking

Safe for use around cats and people, it works with any type of litter and helps keep litter from sticking to the box.

Sprinkle for Freshness

Simply sprinkle in this absorbent litter deodorizer every day to deodorize your cat’s litter box.

About Arm & Hammer

For over 165 years, people have trusted the Arm & Hammer brand for a range of versatile, effective and safe household products. In 1992, they introduced their signature cat litter, made with odor-absorbing baking soda, to give pet parents a powerful solution for litter box odor. Their line for pets includes a range of innovative cat litter and dental care products designed to make the lives of people and pets better every day.

Shop Arm & Hammer

Frequently bought together

Questions & Answers

20 Customer Questions

What makes this particular product "double duty" versus the regular Arm & Hammer litter deodorizer powder?

Answer by Chewy • Sep 17, 2020
They both contain moisture activated SBC crystals and odor neutralizers. The ARM & HAMMER Double Duty Cat Litter Deodorizer Powder also contains additional odor neutralizers specifically developed for fecal malodors.

Do I have to put a thick film of the powder ontop or sprinkle it to just coat? Also, am I supposed to mix this in or leave it ontop?

Answer by Chewy • Aug 02, 2021
In a clean, empty litter box, pour deodorizer to cover the bottom of the litter box. Add any type of litter as usual. Sprinkle on top of litter and mix in. Between litter changes, sprinkle on top after scooping to keep litter fresh.

What's the difference between this to just plain baking soda?

Answer by Chewy • Nov 12, 2021
While both products can be used to deodorize cat litter, ARM & HAMMER™ Double Duty Cat Litter Deodorizer contains moisture activated odor absorbent crystals and odor neutralizing ingredients.

Is this product scented or unscented?

Answer by Chewy • Sep 03, 2020
This deodorizer contains added fragrances.
Reviews
Write a Review
4.7
Rated 4.7 out of 5 stars
14782 Ratings
Terms & Conditions

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Easy to Use

90% Positive

Long-Lasting

86% Positive

Non-Toxic

85% Positive

Odor Control

90% Positive

3326 Customer Reviews

Rated 1 out of 5 stars
By Keith on Jan 8, 2026

Product destroyed/lousy packing

I like Chewy.com! Nice selection, acceptable pricing, good service on the phone...but the packing from the distribution center in my area is terrible. Maybe your

I like Chewy.com! Nice selection, acceptable pricing, good service on the phone...but the packing from the distribution center in my area is terrible. Maybe your area is better, but product delivered to me is very often damaged or even destroyed, and it's not FedEx fault. In this last case, they packed the arm & hammer litter baking soda in with the 40lb. box of litter itself, with no cushioning between them. The baking soda box was, of course, beat to death. I just threw it away. One of us, either chewy or myself, is going to have to change. I can't keep paying for beat-up product. Sorry.

Rated 2 out of 5 stars
By Jenny on Jan 21, 2026

Deodarizes

This does the job of deodorizing, but if you are bothered by strong scents then it's not for you. It also makes the litter dustier making it difficult when cleaning

This does the job of deodorizing, but if you are bothered by strong scents then it's not for you. It also makes the litter dustier making it difficult when cleaning out the box. It's a must to wear a mask to prevent you from breathing in the used deodorizer and cat litter dust. I've been putting it inside the cat genie to reduce the waste smell rather than making more dust in the litter boxes.

Rated 5 out of 5 stars
By Annie on Jan 25, 2026

Perfect for the bin

I generally don’t use this directly in the litter, but if I do the cats don’t seem to be bothered by it. I usually sprinkle it over the waste to prevent the smell

I generally don’t use this directly in the litter, but if I do the cats don’t seem to be bothered by it. I usually sprinkle it over the waste to prevent the smell (and sting) of the ammonia from escaping as I scoop the litter since I don’t have a bin with a drop lever, just a regular one with a hinge lid. It works really well for that.

Rated 1 out of 5 stars
By heather on Jan 23, 2026

Scent is overwhelming

The scent in this stuff is overwhelming. If the scent is needed for the product to do its job then it's nothing but a glorified fragrance powder. I really hop they

The scent in this stuff is overwhelming. If the scent is needed for the product to do its job then it's nothing but a glorified fragrance powder. I really hop they come out with a scent free version, otherwise other brands will have my business.

Rated 4 out of 5 stars
By Giovanna on Dec 18, 2025

Amazing product

I absolutely love using this deodorizer. It's always my top pick when it comes to these products. However, I was a bit bummed that it ended up getting squished during

I absolutely love using this deodorizer. It's always my top pick when it comes to these products. However, I was a bit bummed that it ended up getting squished during shipment. It opened up and started spilling all over my floors. I would definitely buy again, but most likely in person to avoid this problem

Rated 1 out of 5 stars
By Robin on Dec 27, 2025

HEAVILY fragranced!

I use unscented cat litter because both my cats and I dislike those scented litters. I should have read the reviews questions/reviews. The second I opened the tab,

I use unscented cat litter because both my cats and I dislike those scented litters. I should have read the reviews questions/reviews. The second I opened the tab, the fragrance was so strong, I could smell it across the room. I had to duct tape it closed. I'll stick with the regular Arm&Hammer Baking Soda. It does just fine.

Rated 5 out of 5 stars
By Kimberly on Jan 19, 2026

Makes the litter box less smelly

I have been using this stuff for years. A light sprinkle mixed with the litter makes living with a cat much more pleasant. I use a very small amount so it won't

I have been using this stuff for years. A light sprinkle mixed with the litter makes living with a cat much more pleasant. I use a very small amount so it won't be too overwhelming for Miss Cat. Far better than baking soda alone.

Rated 5 out of 5 stars
By Sally on Dec 6, 2025

It was made by Arm & Hammer!

I use this when I clean out their litter box. I flush their turds and put the clumps in a small trash can. Everytime I place some of this deodorizer on top and it

I use this when I clean out their litter box. I flush their turds and put the clumps in a small trash can. Everytime I place some of this deodorizer on top and it helps with any kind of odor. I smell no ammonia from there urine whatsoever! Instead of empting every day , I can empty it every two days, sometimes three. You can't even tell that I put their urine clumps in a trash can, it does a wonderful job of eliminating any and all odors!

Rated 5 out of 5 stars
By jess on Jan 21, 2026

Only thing that works!

This stuff is magic! We sprinkle it on a clean litter box and also on stinky ones until we get around to cleaning it! It truely is the only stuff that gets rid of

This stuff is magic! We sprinkle it on a clean litter box and also on stinky ones until we get around to cleaning it! It truely is the only stuff that gets rid of the smell rather than just mask it. Highly reccomend !

Rated 5 out of 5 stars
By Caral on Dec 3, 2025

Great value

The price paid for this size container was awesome. And with auto delivery, even better. Chewy is so convenient. Orders magically appear in just a few day, most

The price paid for this size container was awesome. And with auto delivery, even better. Chewy is so convenient. Orders magically appear in just a few day, most of the time the very next day. Their prices and sales are exceptional. The representatives fielding calls or online chat inquiries are professional, efficient and very personable. Such a pleasure to have a caring and dedicated pet company to keep my fur baby healthy and happy.