Kitty Litter Systems: What One Listing Says
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Short answer: The kitty litter system listing we read, Mr. Catman DoubleDecker, is a 2-pack sifting litter box for wood or pine pellets, with a sifter pan above a storage tray. It suits a home that already uses pellet litter and wants to scoop less often. The listing does not state a lid, a scoop, a warranty, or a cat weight range.
The person typing “best kitty litter system” usually wants a box and litter that work together, with less scooping. This post covers one Amazon listing, what a Cornell page says about box design, and what the listing leaves out.
Quick answer
- Who it suits: a home that uses wood or pine pellet litter and has weekly trash collection.
- The listing states: a 2-pack, a pellets-only design, a 7 to 14 day waste storage claim, and two different height figures for the Standard size.
- The listing does not state: a lid, a scoop, a warranty, or a cat weight range.
The listing says: Mr. Catman DoubleDecker
These are the figures and statements on the Amazon listing (ASIN B0DK8PSBD9), read on 2026-10-19. The page showed the Dark Grey, 2-Pack Standard option.
| Field | What the listing says |
|---|---|
| Title | 2-Pack Mr. Catman DoubleDecker Wood & Pine Pellet Cat Sifting Litter Box Kitty Litter System, Sifter Pan & Extra-Large 7-Day Waste Storage Tray |
| Brand and manufacturer | Mr. Catman; Mr. Catman Inc. |
| Product dimensions | 20 x 15 x 11 inches; 2.6 pounds. The listing does not say whether the weight covers one unit or both |
| Size table, Standard and 2-Pack | 20 x 15 x 10 inches |
| Size table, Extra Large | 27 x 20 x 21 inches (Dark Grey); 27 x 20 x 17 inches (White Grey) |
| Item model number | SLB01G2PC |
| Date first available | October 15, 2024 |
| Litter type | Designed for wood pellets or pine pellets litter |
| Waste storage | A 4-inch space for 7 to 14 days of waste, according to the listing |
| Odor | Seller claim: sawdust seals odors for up to 7 days |
| Lid | Not stated |
| Scoop | Not stated. A separate scoop appears in a “frequently bought together” box, which is not part of this item |
| Warranty | Not stated |
| Cat weight or size range | Not stated |
| Noise or dust test method | Not stated |
Where the listing disagrees with itself
The product dimensions field gives 11 inches of height, and the size table gives 10 inches for the 2-Pack Standard. The two figures disagree, and the listing does not say which is right. The size table also shows a larger Extra Large version at 27 by 20 inches, so the title alone does not tell you the footprint. Measure the floor space and the height available, then check the size table row for the color and size you pick.
What Cornell says about box design and litter changes
The Cornell Feline Health Center’s house soiling page makes points that bear on a pellet system. It says most cats prefer an uncovered box that lets odors escape. It says larger cats need bigger boxes, and that kittens and elderly cats need boxes with low sides. It also advises switching litters gradually, adding small amounts of the new litter to the old, and says many cats object to foul odors, so the box should be cleaned regularly.
The Cornell page does not discuss this listing or pine pellets.
What the listing says about odor and waste storage
The listing says sawdust covers and encapsulates waste in the storage pan and seals odors for up to 7 days. It also says the sifter box leaves a 4-inch space for 7 to 14 days of waste. These are seller claims. The page gives no test method and no figure for odor. A longer storage period means fewer trips to empty the tray, but it does not mean the box needs less cleaning, and the Cornell page says to clean the box regularly.
Who it suits, and who should skip it
The listing describes a two-box set for a home that uses wood or pine pellet litter and has weekly trash collection. Its bullets say the sifting pan suits multi-cat households. Skip it if:
- You use clay or another non-pellet litter. The listing says it is designed for wood or pine pellets.
- You need a lid. The listing does not state one.
- You want a scoop included. The listing does not name one.
- Your cat is large, and you need a size range. The listing gives no cat weight range, and Cornell says larger cats need bigger boxes.
How we chose
On 2026-10-19 we searched Amazon for “kitty litter system.” The results page read 1-48 of over 1,000 results. The search returned several organic listings that use “litter system” or “system kit” in their titles, including Purina Tidy Cats Breeze kits. One organic result had “Kitty Litter System” in its title: the Mr. Catman DoubleDecker listing (ASIN B0DK8PSBD9). We opened that listing. We did not open the other system-style results, so this post does not compare them. It does not rank products, and it does not say this is the best kitty litter system. The criteria were a title match, an organic placement, and a read date. We did not use prices, ratings, review counts, badges or review text.
What we could not verify
- The listing does not state a lid, a scoop or a warranty.
- The listing gives two height figures for the 2-Pack Standard, 10 and 11 inches, and does not explain the difference.
- The odor and storage claims are the seller’s. The sources we opened do not cover how this system performs in any home.
- The listing does not state a cat weight range or the wall height of the sides.
- We did not open the other system-style listings, so we cannot say how this one compares with them.
Buying checklist
- Confirm which size you are buying. The Standard and the Extra Large have different dimensions in the size table.
- Measure the height and footprint, and resolve the 10-inch and 11-inch height figures with the seller before you order.
- Check that your litter is wood or pine pellets. The listing says the system is designed for them.
- If you are moving from clay litter, change litter gradually, as Cornell’s page advises.
- Ask the seller about the lid and the warranty. The listing does not state either one.
- Check the current price on Amazon before you order.
Mistakes to avoid
- Ordering the Extra Large size by mistake. Its dimensions are much larger than the Standard row in the size table.
- Treating the 7 to 14 day storage figure as a reason to skip cleaning. Cornell says to clean the box regularly.
- Assuming a scoop is included because one appears in a “frequently bought together” box.
- Assuming the box works with clay litter. The listing describes wood and pine pellets only.
- Changing from clay to pellets in one step. Cornell advises a gradual switch.
FAQ
Does this Mr. Catman box come with a lid?
The listing does not state a lid. Its title, bullets and product details describe an open sifting system with a sifter pan and a storage tray.
Which size should I choose?
The size table lists 20 by 15 by 10 inches for the Standard and 2-Pack versions, and 27 by 20 inches for the Extra Large. The product dimensions field gives 20 by 15 by 11 inches. The two figures for the Standard disagree, so measure your space and confirm with the seller.
Does the sawdust control odor?
The listing says sawdust seals odors for up to 7 days. That is the seller’s claim. The sources we opened do not cover how the system performs in any home.
Does it come with a scoop?
The listing does not name a scoop as part of this item. A separate scoop appears in a “frequently bought together” box, but that is a different product.
Can it be used with clay litter?
The listing says it is designed for wood pellets or pine pellets litter. The page also asks whether it can be used with other types of litter, and the text we read shows no answer.
Bottom line
Choose this system if you already use wood or pine pellet litter, you have weekly trash collection, and you can confirm the size and height with the seller. Before you buy, confirm the lid, the scoop and the warranty, because the listing does not state them.
For the next questions readers often have, see our guides to self-cleaning cat litter boxes if you are weighing an automatic option, the Litter-Robot 4 review for a fully automatic model, and litter boxes for small apartments for room planning. For the rest of the setup, see our guides to cat trees for small apartments, scratching posts for heavy scratchers, window perches, interactive toys for indoor cats and automatic cat feeders.
Sources
- Amazon listing, 2-Pack Mr. Catman DoubleDecker Wood & Pine Pellet Cat Sifting Litter Box Kitty Litter System (ASIN B0DK8PSBD9): https://www.amazon.com/dp/B0DK8PSBD9 (opened 2026-10-19). Cited for the title, size table, product dimensions, model number, date first available, litter type, waste storage and seller odor claim.
- Cornell Feline Health Center, Feline behavior problems: house soiling: https://www.vet.cornell.edu/departments-centers-and-institutes/cornell-feline-health-center/health-information/feline-health-topics/feline-behavior-problems-house-soiling (opened 2026-10-19). Cited for the uncovered-box preference, the low-sides point for kittens and elderly cats, the bigger-box point for larger cats, the gradual switch between litters, and the advice to clean the box regularly.
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