SmartCat All Natural Clumping Cat Litter
- Cat Litter
- 20 pounds
- Grass Seed
- Cat
- More reviewed than 72%
A dust reduced, unscented alternative to clay litter built from grass seed, aimed at owners prioritizing air quality over lowest cost per pound.
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How it ranks among the 155 cat litter we track
4.3★ across 5,300 Amazon ratings, Bayesian-smoothed toward the category average.
5,300 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
6,000+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 155 cat litter we track - how the scorecard works · full cat litter data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
This is a 20 pound bag of SmartCat's grass seed based clumping litter, sold unscented and marketed as chemical and 99 percent dust free. It replaces clay or pellet litter with a plant derived granule for owners who want to limit dust exposure around the litter box.
Grass seed litter clumps differently than clay: the granules bind moisture into a firm mass without the fine clay dust that settles on floors and furniture. SmartCat markets it as unscented, which matters for cats sensitive to perfumed litters, and the plant based material composts more readily than clay. It's also lighter to carry than an equivalent clay bag.
- 20 pound bag, 320 ounces
- Grass seed granule, not clay or pellet
- Unscented
- Marketed 99 percent dust free
Who it's for
Suits owners dealing with dust sensitivity, their own or their cat's, and households that prefer an unscented litter over a perfumed one. It is not the cheapest option per pound compared to bulk clay litter.
Strengths and trade-offs
Drawn from this product's published specifications.
- Marketed chemical and 99 percent dust free
- Unscented formula avoids added fragrance
- Lighter weight than clay per bag
- No scent means it leans on the material alone for odor control
- Costs more per pound than bulk clay litter
Performance notes
Clumping strength depends on the grass seed granules absorbing and binding liquid into a solid mass that lifts out with a standard scoop, the same basic mechanism as clay clumping but from a different base material. Because it is unscented, odor control relies on the material itself rather than added fragrance.
Specifications
| Brand | SmartCat |
|---|---|
| Model | 6506 |
| Dimensions & fit | |
| Item Weight | 20 pounds |
| Item Display Weight | 1 pound |
| Capacity & performance | |
| Capacity | 20 pounds |
| Construction & materials | |
| Material Type | Grass Seed |
| Included components | |
| Unit Count | 20 pounds |
| Included Components | Cat Litter |
| Other details | |
| Pet Type | Cat |
| Asin | B00P0H6836 |
| Upc | 898142002965 853442005122 885155392329 |
| Manufacturer | SmartCat |
| Best Sellers Rank | #1,206 in Pet Supplies (See Top 100 in Pet Supplies) #56 in Cat Litter |
| Scent Name | Unscented |
| Item Form | Granule |
| Model Number | 6506 |
| Manufacturer Part Number | 6506 |
| Customer Reviews | {'ratings_count': '5,356', 'stars': '4.3'} |
| Target Species | Cat |
| Item Type Name | Natural Cat Litter |
How it compares
This product against the closest alternatives we track in cat litter.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| SmartCat All Natural Clumping Cat LitterThis product | 4.3 / 5 | 5,300 | 4.4 / 5 |
| Fresh Step Advanced Extreme Clump Multi Cat Clumping Litter with Febreze FreshnessFresh | 4.7 / 5 | 20,600 | 4.6 / 5 |
| ARM & HAMMER Clump & Seal SLIDE Platinum Multi-Cat Clumping Cat LitterARM | 4.6 / 5 | 19,800 | 4.6 / 5 |
| PetSafe ScoopFree 4.3 lb BagsPetSafe | 4.5 / 5 | 45,300 | 4.5 / 5 |
| Cat's Pride Premium Lightweight Clumping Litter: Pure & FreshCat's | 4.5 / 5 | 18,600 | 4.5 / 5 |
Similar cat litter from other brands
Questions about the SmartCat 6506
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What is SmartCat cat litter made from?
It is a grass seed based granule, not clay or pellet material.
Is this litter scented?
No, it is sold unscented with no added fragrance.
How much does one bag weigh?
The bag holds 20 pounds (320 ounces) of litter.