How Much Does Arm & Hammer Clump & Seal Cost?
About $13.08 a month for one cat, $26.16 for two.

Quick answer
- 1Arm & Hammer Clump & Seal costs $13.08 a month and $156.95 a year for one cat.
- 2The bag itself is $16.99 for 38 lbs, $0.45 a pound, $0.43 a day.
- 3By cost per day it ties at rank 6 of 17 litters we track, against a $15.82 typical monthly bill.
- 4One 38 lbs bag lasts 5 weeks with one cat, 3.5 weeks in a multi-cat home.
Cost breakdown
| Bag price | $16.99 |
|---|---|
| Bag size | 38 lbs |
| Cost per pound | $0.45 |
| Cost per day (1 cat) | $0.43 |
| Cost per month (1 cat) | $13.08 |
| Cost per year (1 cat) | $156.95 |
Yearly cost by number of cats
| Cats | Monthly | Yearly |
|---|---|---|
| 1 cat | $13.08 | $156.95 |
| 2 cats | $26.16 | $313.90 |
| 3 cats | $39.24 | $470.85 |
| 4 cats | $52.32 | $627.80 |
Each row multiplies the tested one-cat cost per day by the cat count and then by 365 days. Real households sometimes run higher, because a shared box gets scooped and refilled more than a straight multiplier assumes.
What you pay for
Arm & Hammer Clump & Seal, worked out
Arm & Hammer Clump & Seal runs $0.43 a day, against a $0.52 daily median across the 17 litters we track. By cost per day, Clump & Seal ties at rank 6 of 17.
- One cat, one year
- $156.95
- Two cats, one year
- $313.90
No litter we track clumps as well for less money.
Clumping and dust, for the price
Arm & Hammer Clump & Seal scored 8.1/10 for clumping (Good) and 6/10 for dust (0.45mg per pour) when we tested it. It already delivers that score at the lowest price we found for it. For a lower dust reading at a lower price, look at Feline Pine or Fresh Step.
Cheaper with the same scores
No litter we track matches Clump & Seal on both clumping and dust for less money. On those two scores, it already leads for the price.
How long one bag lasts
Cheaper and pricier tested alternatives
Arm & Hammer Clump & Seal sits between Dr. Elsey's Ultra and Arm & Hammer HardBall on cost per day.
Questions people ask
How much does Arm & Hammer Clump & Seal cost per month?
Arm & Hammer Clump & Seal runs about $13.08 a month for one cat, based on our tested cost of $0.43 a day. A 38 lbs bag costs $16.99. That puts it tied at rank 6 of 17 litters we track by daily cost, against a $15.82 typical monthly bill.
How much does Arm & Hammer Clump & Seal cost per year?
For one cat, Arm & Hammer Clump & Seal costs about $156.95 a year. Multiply by cat count for a rough multi-cat estimate; real multi-cat homes often run a bit higher because boxes get used harder.
How long does a bag of Arm & Hammer Clump & Seal last?
One 38 lbs bag lasts 5 weeks with a single cat and 3.5 weeks in a multi-cat home, based on our testing. We rate it best for budget shoppers prioritizing odor control.
Does Arm & Hammer Clump & Seal come in a bulk or warehouse-size bag?
Yes. The 38 lbs bag we tested is warehouse-size, the kind sold at Costco, Sam's Club, or a big-box pet aisle.
More on Arm & Hammer Clump & Seal and cat litter cost
- Best Clumping LitterRoundup
- Best Cat Litter for Odor ControlRoundup
- Best Cat Litter for Multiple CatsRoundup
- Dr. Elsey's Ultra vs Arm & Hammer Clump & SealHead to head
- Arm & Hammer Clump & Seal vs Purina Tidy CatsHead to head
- Fresh Step Scented vs Arm & Hammer Clump & SealHead to head
- How much does cat litter cost overallGuide
- Cheapest litter per pound, rankedGuide
- Compare warehouse-size bagsGuide
- Compare cat litters side by sideGuide
- We weighed the dust off 16 cat littersGuide
Purrify - keep the cheap bag, add the odor control
A cheap litter your cat likes is worth keeping. Purrify is activated carbon you add to it, so smell is not the reason to trade up. It costs what it costs on their site, and we have not measured what it saves you.
Read our Purrify guide to what a carbon additive does to a litter you already own.
- Activated carbon, sold in bags
- 5.0 Google rating
- Stocked in 40+ pet stores across Canada
Price and cost figures come from the same catalog used across every review and comparison page, checked on 2026-03-07.