UIRWAY 9×18 ft Rectangular Winter Pool Cover
9×18 ft rectangular — The 9×18 ft rectangular cut of the UIRWAY 500D — our best fabric cover — for the most common Intex and Bestway rectangular frame size. Same 500D fabric and the same leg-strap tie-down that grips the pool's own legs instead of staking into the ground. The rating is the listing's pooled score across all sizes and shapes, not this size's own.
Specs
| Fabric | 500D, gel-coated straps |
| Tie-down system | Leg straps + dual drawstring (no ground stakes) |
| Tear strength | 780 N ≈ 175 lb (maker-tested) |
| Fit | Rectangular 9×18 ft above-ground / metal-frame pools |
| Cover pump | Yes (solid) |
| Warranty | Not published |
Pros
- Cut for a 9×18 ft rectangle, so you order your pool's two dimensions rather than guessing at a round size that will not fit
- Same cover, fabric and tie-down as the round version we rank on this page — the construction is not downgraded for the rectangular cut
Cons
- It runs SMALL — the dominant complaint on this listing family is that the overhang is far less than the photos suggest, so measure and size up
- Solid fabric, so water pools on top — you still need to pump it off, and it is not a safety cover
- Its rating is the LISTING's pooled score across every size and shape, not this size's own — see the ratings note
Two failures, and the serious one is the coating. Owners report it degrading into the water: 'after only a few weeks over my pool, it essentially melted into the water and left tar-like goo over the sides as well as everything that was in the water', and separately 'Cover Leaves Sticky Black Stains on Pool Sides!'. The second theme is that it tears — one owner returned the prior year's for a tear, 'this one ended up torn also', and another had 'a seam ripped over the winter and it can't be used again'. Add the fit complaint we already flag ('It's TIGHT TIGHT — your fingers will hurt') and one owner's flat verdict that it is 'definitely not a winterizing cover at all — best for keeping leaves out'. The listing also oversells: its photos show a man lying on the cover, and an owner notes 'there is no way this cover could support a grown man's weight'.
10 critical reviews read on page 1 of 1,253 global ratings; the coating/black-residue theme appears in 2 independent reviews and the tear/seam theme in 3 · critical reviews read August 2026
FAQ
Who is the UIRWAY 9×18 ft Rectangular Winter Pool Cover for?
Your above-ground pool is a 9×18 ft rectangle and you want to land on your exact size instead of hunting through a size menu.
What do owners say about the UIRWAY 9×18 ft Rectangular Winter Pool Cover?
4.4★ across 1,253 owner ratings (Amazon, read August 2026 · listing-wide base · global base). What owners complain about: Two failures, and the serious one is the coating. Owners report it degrading into the water: 'after only a few weeks over my pool, it essentially melted into the water and left tar-like goo over the sides as well as everything that was in the water', and separately 'Cover Leaves Sticky Black Stains on Pool Sides!'. The second theme is that it tears — one owner returned the prior year's for a tear, 'this one ended up torn also', and another had 'a seam ripped over the winter and it can't be used again'. Add the fit complaint we already flag ('It's TIGHT TIGHT — your fingers will hurt') and one owner's flat verdict that it is 'definitely not a winterizing cover at all — best for keeping leaves out'. The listing also oversells: its photos show a man lying on the cover, and an owner notes 'there is no way this cover could support a grown man's weight'.
What is the warranty on the UIRWAY 9×18 ft Rectangular Winter Pool Cover?
UIRWAY publishes no warranty term for the UIRWAY 9×18 ft Rectangular Winter Pool Cover — we looked for one from the maker and record the absence rather than guess. Buy it somewhere with a return window you trust.
✓ Safety: no active recall — Winter/debris cover — NOT a safety cover, holds no weight and carries no ASTM F1346 rating. No active CPSC recall found (checked August 2026).
Size your pool first → ·All pool gear →
Data last verified: August 2026. Ratings are real, dated reads — never scraped or invented. Full methodology and monetization disclosure: how we test.