Swimline Above Ground Pool Winter Cover Air Pillow 4×4 ft
The legacy name, at double the price — The other pillow the category has been buying for years: 3.9★ across 2,156, the second-deepest base here, at $17.36. It rates exactly what the Blue Wave rates while costing twice as much, and its listing leans hardest of any on the ice claim — it calls the pillows "ice compensators". Buy it only if you want a known name and are not persuaded by the newer designs.
Specs
| Type | Inflatable winter cover pillow |
| Size | 4 × 4 ft |
| Valve | Large-opening valve |
| Maker claim | "Ice compensators" — absorbing pressure from freezing water |
| Warranty | 1 year |
Pros
- Second-deepest evidence base in the category at 2,156 ratings
- Clean single-model base — no sizes pooled into the number
- Large valve opening, which is the part owners fight with on the cheapest pillows
Cons
- Same air loss as the pillow it costs twice as much as: owners time it at 2 months, 3 months and a year, including one who filled to 70% and faced the valve up as instructed
- NO ROPE IN THE BOX, and only two tie points — "would be nice to tie it off on all 4 corners"
- Rates 3.9★, identical to the Blue Wave, at nearly twice the price, and half a star below the POOLHACKER
Air loss on a clock, and the clock is short. "Died after less than 2 months"; "Made it 2 months" from an owner who did everything right ("Only filled pillow 70% of the way, like recommended. Have the valve facing u[p]"); "It lasted about 3 Months"; "Only lasted a year. On the pool now flat"; and one who "lost about two thirds of its air, quite suddenly" after following the instructions carefully. Then the box: NO ROPE. "The pillow is great, but it did not come with the rope that you need to secure it" and "I assumed it would come with strings but it didn't. Also would be nice to tie it off on all 4 corners instead of ju[st two]." One owner reports the punched grommet holes ripping easily.
10 critical cards read on page 1 of 2,156 ratings; air loss appears in 6 independent reviews, the missing rope in 2 and torn grommet holes in 1. 10/10 Verified Purchase, 0 Vine. · critical reviews read August 2026
FAQ
Who is the Swimline Above Ground Pool Winter Cover Air Pillow 4×4 ft for?
You want a long-established brand and the Blue Wave's record has put you off it.
What do owners say about the Swimline Above Ground Pool Winter Cover Air Pillow 4×4 ft?
3.9★ across 2,156 owner ratings (Amazon, read August 2026). What owners complain about: Air loss on a clock, and the clock is short. "Died after less than 2 months"; "Made it 2 months" from an owner who did everything right ("Only filled pillow 70% of the way, like recommended. Have the valve facing u[p]"); "It lasted about 3 Months"; "Only lasted a year. On the pool now flat"; and one who "lost about two thirds of its air, quite suddenly" after following the instructions carefully. Then the box: NO ROPE. "The pillow is great, but it did not come with the rope that you need to secure it" and "I assumed it would come with strings but it didn't. Also would be nice to tie it off on all 4 corners instead of ju[st two]." One owner reports the punched grommet holes ripping easily.
What is the warranty on the Swimline Above Ground Pool Winter Cover Air Pillow 4×4 ft?
1 year
✓ Safety: no active recall — Cover accessory. Not a safety device, holds no weight. No active CPSC recall found (August 2026).
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Data last verified: August 2026. Ratings are real, dated reads — never scraped or invented. Full methodology and monetization disclosure: how we test.