ARM & Hammer Ultra Last Clumping Cat Litter – Fragrance Free Litter for Calming Multi-Cat Home, Daily Odor Control
ARM & Hammer Ultra Last Clumping Cat Litter – Fragrance Free Litter for Calming Multi-Cat Home, Daily Odor Control
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Why you'll love it
- Baking soda neutralizes odor at the source instead of masking it with fragrance
- Unscented formula protects fragrance-sensitive cats and humans from artificial perfume
- 99% dust free claim reduces airborne particles that aggravate allergies and asthma
- Multi-cat clumping strength handles higher traffic and heavier use without breaking apart
- Low tracking granules keep litter off floors, stairs, and pet paws
- 18 lb pack or 2-pack bulk option lowers per-pound cost and reduces shipping frequency
Perfect for
- Daily clumping litter maintenance in multi-cat homes where one box services several cats
- Neutralizing litter box odor between scoopings when the owner is away for a day or more
- Switching from a perfumed litter to a fragrance-free option for sensitive cats or humans
- Stocking up on bulk supply to avoid frequent Amazon reorders for cat-owning households
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Product Information
LONG-LASTING ODOR CONTROL. ARM & HAMMER Ultra Last Unscented Clumping Cat Litter includes Baking Soda granules with odor eliminators provide long-lasting odor control even when you can't scoop the kitty litter box daily
ONLINE EXCLUSIVE! Fill your cat litter box with unscented, long-lasting odor control using ARM & HAMMER Ultra Last Unscented Clumping Cat Litter! This new 18 Lbs. clumping cat litter is online-exclusive, ready to ship anytime
UNSCENTED FOR A REFRESHING EXPERIENCE. This unscented cat litter provides long-lasting freshness and ultra odor control. ARM & HAMMER kitty litter is an instant odor destroyer with ARM & HAMMER Baking Soda to neutralize odors
PET-FRIENDLY WITH BAKING SODA Odor control plus Baking Soda freshness is the secret behind ARM & HAMMER Ultra Last Unscented Clumping Cat Litter Coated with ARM & HAMMER Baking Soda, this virtually dust free cat litter (99%) is tough on odors
BUY TWO TO LAST TWICE AS LONG. ARM & HAMMER Ultra Last Unscented Clumping Cat Litter, a low tracking cat litter, comes in smaller, more conveniently sized 18 Lbs. packaging so you can stock up and buy multiples
Brand: Arm & Hammer
Item Weight: 18 pounds
Material: Mineral and Plant Derivatives
Scent: Unscented
UPC: 033200975465
Item Form: Granular
Global Trade Identification Number: 00033200975465
Unit Count: 288 Ounce
Capacity: 18 pounds
Weight: 18 pounds
ARM & HAMMER Ultra Last Unscented Clumping Cat Litter is a smart choice for cat care & hygiene, powered by pure ARM & HAMMER Baking Soda which works as an odor neutralizer. This clumping litter provides odor control cat litter benefits, ensuring a clean and refreshing unscented experience with ultra long-lasting odor elimination & control. Perfect for those seeking multi cat litter solutions, it excels in clumping efficiency. Designed for dust control & low-dust performance, it offers a dust free environment, making it ideal for those prioritizing non tracking cat litter. Choose ARM & HAMMER Cat Litter for a comprehensive approach to cat care and hygiene.Item Form: Granular
Global Trade Identification Number: 00033200975465
Capacity: 18 pounds
Item Display Weight: 18 pounds
Item Type Name: Cat Litter
Included Components: Cat Litter
Target Species: Cat
Item Weight: 18 pounds
Material Type: Mineral and Plant Derivatives
Scent Name: Unscented
Frequently Asked Questions
Will this fragrance free formula help me wind down at night without litter odor in my bedroom area?
Yes. ARM & Hammer Ultra Last Unscented uses baking soda to neutralize odor at the source rather than masking it with perfume, so the air near your bedroom-adjacent litter nook stays neutral and supports a calmer end of day routine.
Is this litter gentle enough for cats and humans with fragrance sensitivities or allergies?
Yes. The formula contains no added perfumes or masking fragrances and is 99 percent dust free, which helps reduce airborne particles that can aggravate allergies, asthma, or sensitive noses in both cats and people.
Does the baking soda really neutralize odor or does it just cover it up?
Baking soda neutralizes odor at the source by absorbing and balancing odor molecules rather than layering fragrance over them, which is why fragrance sensitive households often prefer this approach for multi-cat litter areas.
Can I keep a litter box in a small apartment without the smell disrupting my self care routine?
Yes. The unscented multi-cat clumping formula with baking soda is designed to control odor in compact spaces, making it suitable for studio apartments, small litter corners, and bedroom-adjacent nooks where a calm atmosphere matters.
Will the low dust formula actually help me breathe easier during my morning ritual at home?
Yes. The 99 percent dust free manufacturing process reduces fine particles kicked up during pouring and scooping, which means cleaner air around the litter box and a more comfortable environment for fragrance sensitive or allergy prone users.
Is this a good litter if I want to switch to a non perfumed option for my sensitive cat?
Yes. This unscented clumping formula is designed specifically for households switching away from perfumed litter, giving you effective odor control through baking soda without artificial fragrance that may bother sensitive cats or humans.
How does baking soda litter support a cleaner wellness focused home?
Baking soda works continuously between scoopings to neutralize odor, so you can maintain a calm, fresh smelling space around the litter box without relying on heavy perfumes that conflict with a low scent, wellness oriented home.
Will this litter work for a multi-cat household where odor builds up quickly?
Yes. The hard clumping multi-cat strength is built for higher traffic, and the baking soda coating neutralizes odor continuously, so even with several cats sharing boxes you can keep a more peaceful, low stress home environment.
Is the 18 lb bag heavy to carry into a small laundry room litter area?
The 18 lb bag is a standard manageable size for most adults, and if you prefer lighter handling the value pack of 2 arrives as two separate 18 lb bags so each one stays easy to carry into a tight laundry or utility space.
Does this litter leave a scent behind that could interfere with a calming bath or wind down ritual?
No. The unscented formula leaves no added perfume behind, so it will not compete with candles, essential oils, or other elements of your wind down routine in nearby rooms.
I tried perfumed litter and it bothered my sinuses. Will this baking soda version actually feel cleaner?
Most fragrance sensitive users find the unscented baking soda formula noticeably cleaner because it neutralizes odor rather than adding scent, and the 99 percent dust free claim means fewer airborne irritants during pouring and scooping.
If I am building a calm, low allergen home, is clumping clay a better choice than natural litter?
Clumping clay like this one forms solid, easy to remove clumps which means less lingering waste in the box, and the fragrance free, low dust profile suits allergy conscious households building a calm, intentional home environment.
What if my cat or I react to dust even with an unscented formula?
The 99 percent dust free manufacturing significantly reduces airborne particles compared to standard clay litters, but if you have severe asthma or allergy concerns we recommend pouring slowly and storing the bag in a low traffic area to minimize any residual dust exposure.
How do I set up and start using this clumping cat litter?
Pour 3 to 4 inches of ARM & Hammer Ultra Last Unscented into a clean litter box, place it in a low traffic area, and let your cats adjust. Scoop clumps daily, top off as needed, and fully change the litter every 2 to 3 weeks for a multi-cat household.
How often should I scoop and fully change the litter?
Scoop solid clumps at least once per day in a multi-cat home, and plan a full litter change and box wash roughly every 2 to 3 weeks depending on the number of cats and box usage.
Can I mix this litter with another brand I already have?
You can top off a box with this litter, but for best clumping and odor performance we recommend a clean transition by emptying the box, washing it, and starting fresh with the new formula.
Is this litter compatible with sifting, covered, and self cleaning litter boxes?
Yes. The hard clumping granule form works with standard sifting boxes, covered boxes, and most self cleaning rakes. For mechanical boxes, the solid clump size makes it easier for sensors and rakes to cycle waste without breaking apart.
Will this litter work for kittens as well as adult cats?
It is generally safe for kittens over 8 weeks old who are reliably using the litter box. For very young kittens, monitor use to confirm they are not ingesting litter and consult your veterinarian if you have concerns.
What is included in the box when I order this product?
Your order includes either one 18 pound bag of ARM & Hammer Ultra Last Unscented Multi-Cat clumping litter or a value pack of 2 bags totaling 36 pounds, sealed and ready to pour. No scooper or box is included.
Is clumping clay litter safe for cats and humans in the home?
Yes. Clumping clay litter has been used safely in cat households for decades. The unscented, 99 percent dust free, baking soda based formula is designed to minimize airborne particles and avoid added perfumes, which is helpful for sensitive cats and people.
Will this litter trigger allergies or asthma more than other options?
It is designed to be gentler than standard clay litters thanks to the 99 percent dust free claim and fragrance free formula, but no litter is completely allergen free. Pour slowly, keep the box ventilated, and consult your doctor if you have severe respiratory concerns.
What is the difference between clumping clay litter and natural or plant based litter?
Clumping clay forms solid, scoopable clumps for easy daily maintenance and tends to track less, while natural or plant based litters may be biodegradable but often produce more dust, scatter more, and do not always clump as firmly for multi-cat use.
