If you’ve ever wandered Costco’s pet aisle, you’ve seen it: a giant 44-lb bag of Simply Purrfect sitting next to the Kirkland and Scoop Away stock, priced like it wants to be the cheapest scoopable clay on the shelf. Costco members have been hauling it home for years, and the loyalty is real — forum threads are full of people who switched their whole multi-cat household to it and never looked back.
The honest note: Simply Purrfect isn’t a small new brand — it’s Costco’s in-house litter line, made by Normerica International Corp., and it’s only sold at Costco (US and Canada). There’s no Amazon listing, no pet-store shelf, and the lineup is tiny: essentially one clay litter in two package sizes plus a probiotic formula. So this is a short, honest brand review, not a six-pick roundup — there aren’t six products to review, and we won’t invent any. We’ll cover what actually exists, what owners praise (price, clumping when it’s good), and what they complain about (batch inconsistency, dust, spotty availability).
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Simply Purrfect at a Glance
| # | Product | Key Spec | Best For | Check Price |
|---|---|---|---|---|
| 1 | Scoopable Cat Litter, 44 lb bag | Clay clumping · Costco #1280134 | Best value | — (Costco-only; no Amazon listing) |
| 2 | Odor Control Scoopable Cat Litter, 35 lb box | Probiotic + baking soda · Costco #1863167 | Best odor formula | — (Costco-only; no Amazon listing) |
| 3 | Probiotic Cat Litter, 20 kg (Canada) | Probiotic formula · Costco Canada #3357366 | Best for Canadian members | — (Costco-only; no Amazon listing) |
Costco item numbers included so you can find them in-warehouse. Pricing varies by warehouse and isn’t reliably listed online — expect roughly $10–13 in-store, but check at your warehouse.
1. Simply Purrfect Scoopable Cat Litter, 44 lb Bag — Best Value
This is the flagship: a 44-lb bag of scoopable (clumping) clay litter sold under Costco item #1280134. The pitch is extra-strength odor control against ammonia, urine, and fecal odors, with tight-clumping, ultra-absorbent clay. At the warehouse price — around $11 for 44 lbs in many US stores — it’s one of the cheapest per-pound scoopable litters anywhere, and for a multi-cat household that goes through litter fast, the math is compelling.
The honest part is the consistency problem. Owner complaints cluster around batches that don’t clump like they used to — long-time buyers on complaints forums report periods where the litter stopped clumping well and odor control fell off, forcing them to add baking soda or dump the box early. When it’s good, it’s great; when it’s off, it’s maddening. Dust is also a recurring complaint — this is not a premium low-dust clay, and sensitive cats (and sensitive noses) notice.
Specs: 44 lb (20 kg) bag · clumping clay · fill 3–4 inches, no liner needed · made in Canada by Normerica International Corp. · Costco item #1280134.
Pros: among the cheapest scoopable litters per pound; strong clumping when the batch is good; huge bag suits multi-cat homes.
Cons: batch-to-batch inconsistency — clumping and odor control complaints from long-time buyers; dusty compared to premium clays; availability varies by warehouse.
Verdict: The value champion for Costco members — stock up when it’s on the shelf, because it isn’t always. (No Amazon listing; available in-warehouse at Costco.)
2. Simply Purrfect Odor Control Scoopable Cat Litter, 35 lb Box — Best Odor Formula
The 35-lb box (Costco item #1863167, also seen as #1244567 in some regions) is the upgraded formula: a probiotic-enhanced, odor-control scoopable clay with baking soda and odor-fighting crystals, plus a fresh scent fragrance. It comes in a recyclable cardboard box made from 100% recycled material (88% post-consumer waste) instead of a plastic bag — a genuinely nice touch for the eco-minded.
Complaints mirror the flagship’s: owners praise the price and the box, but report the same batch-inconsistency issues with clumping, and some find the fresh-scent fragrance too strong for sensitive cats. The box is also easier to spill than a bag if you store it awkwardly. It’s the better formula on paper; whether your particular batch clumps like the box promises is the eternal Costco gamble.
Specs: 35 lb box · clumping clay · probiotic-enhanced odor control · baking soda + odor-fighting crystals · fresh scent · recyclable cardboard packaging · Costco item #1863167.
Pros: best odor-fighting formula in the line; eco-friendly recyclable box; warehouse pricing (often ~$10–13).
Cons: same batch-inconsistency complaints as the flagship; fragrance too strong for some cats; box can spill if stored carelessly.
Verdict: The better formula — pick this one if your warehouse stocks it. (No Amazon listing; available in-warehouse at Costco.)
3. Simply Purrfect Probiotic Cat Litter, 20 kg (Canada) — Best for Canadian Members
Canadian Costco members get their own variant: the 20-kg probiotic formula (item #3357366), tracked at around CA$8–10 in-warehouse — remarkably cheap for 20 kg of litter. It shares the probiotic-enhanced odor-control approach of the US 35-lb box.
The honest caveat: this is a Canada-warehouse item with spottier online documentation than its US siblings, and the same dust and consistency themes apply. Availability reports show it cycling in and out of stock. If you’re a Canadian member and spot it, it’s the same value equation as the US line — just in kilograms.
Specs: 20 kg (44 lb) · probiotic-enhanced scoopable clay · Costco Canada item #3357366 · in-warehouse only.
Pros: excellent Canadian warehouse pricing; same probiotic odor-control approach; bulk sizing.
Cons: limited documentation; spotty availability; same dust and consistency caveats as the line.
Verdict: Canada’s version of the value play — buy it when you see it. (No Amazon listing; Costco Canada in-warehouse only.)
How to Choose: Is Simply Purrfect Right for Your Cats?
Do the per-pound math honestly. At warehouse pricing (~$10–13 for 35–44 lbs), Simply Purrfect runs roughly $0.25–0.35/lb — half the per-pound cost of premium clays like Dr. Elsey’s or Boxiecat. If you run multiple boxes or multiple cats, that’s real money over a year. If you have one cat and one box, the savings are modest enough that a pricier, more consistent litter might be the better buy.
Dust matters more than the price suggests. This is the line’s weakest point against premium competitors. If anyone in the house has allergies, asthma, or just hates the dust cloud when pouring, the savings may not be worth it — a dusty cheap litter that gets you coughing is a false economy.
Scent tolerance is a real filter. The Odor Control/Probiotic formulas add fragrance. Some cats don’t care; some refuse scented litter outright. If your cat has ever rejected a scented box, stick with the unscented 44-lb bag.
Availability is part of the product. Simply Purrfect cycles in and out of warehouses, and there’s no backup retailer — Costco is the only source. If your cats adapt to a litter and then it vanishes for two months, the forced switch can cause box avoidance. Loyalists buy two bags when it’s in stock.
Watch batch consistency. The documented complaint pattern — long-time buyers reporting sudden drops in clumping quality — means you should judge each new bag, not the brand’s reputation. If a bag clumps poorly, don’t assume it was always like that (and don’t keep buying it hoping).
You need a Costco membership. Obvious, but it’s the whole pricing model: the value only exists inside the membership. Factor the $60/year membership into your mental math if litter is the only reason you’d join.
Bottom line: Simply Purrfect is the best value in bulk clay litter for Costco members — when the batch is good, it’s half the price of premium clays with comparable clumping. But go in with eyes open: dust, fragrance in the upgraded formulas, batch inconsistency, and warehouse-only availability are the real trade-offs. For multi-cat households burning through litter, it’s worth a try; for dust-sensitive homes or picky cats, spend the extra on a premium low-dust clay.
Frequently Asked Questions
Who makes Simply Purrfect cat litter?
Simply Purrfect is Costco’s in-house litter brand, manufactured by Normerica International Corp. (made in Canada). It’s sold exclusively at Costco warehouses in the US and Canada — there’s no Amazon listing and no third-party retail.
Is Simply Purrfect litter the same as other Costco litters?
No. Costco has carried several litter brands over the years (including Scoop Away and its own Kirkland-adjacent offerings), and the cat-litter lineup changes by warehouse and year. Simply Purrfect is its own dedicated brand line, distinct from those.
Why does Simply Purrfect sometimes not clump well?
This is the line’s most documented owner complaint: long-time buyers report batches that clump poorly or lose odor control, suggesting formula or quality-control inconsistency between production runs. If a bag underperforms, it’s likely a bad batch rather than user error — Costco’s return policy is your friend here.
Is Simply Purrfect dusty?
More so than premium clays, yes. Dust is one of the most consistent complaints across the line, and at least one owner linked a dusty batch to a respiratory episode in their cat. If dust is a priority, this isn’t the cheapest path — look at low-dust premium clays or paper litters instead.
Is Simply Purrfect scented?
The flagship 44-lb Scoopable bag is unscented; the Odor Control 35-lb box and Probiotic formulas include a fresh-scent fragrance plus baking soda and odor-fighting crystals. Check the packaging — and if your cat rejects scented litter, stick with the unscented bag.
Can I buy Simply Purrfect online?
Not reliably. It’s an in-warehouse item; Costco’s website carries it intermittently and stock varies by region. There is no official Amazon listing. Your best bet is checking your local warehouse — and buying two bags when it’s there.
