Swimline 133002 4 foot by 5 foot equalizer pillow for winter pool coversSwimline 4' x 5' Equalizer Pillow, 133002$2199
Swimline 133002 4 foot by 5 foot equalizer pillow for winter pool covers

Swimline 4' x 5' Equalizer Pillow, 133002

Ask a questionMPN 133002
$2199
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Quick overview

  • 4' x 5' The four by five foot size, one of several Swimline offer to suit different pool and cover sizes.
  • Takes the ice load An air pillow under the cover gives expanding ice somewhere to push, instead of the pool walls.
  • Sheds rain and melt The raised center makes water run to the edges of the cover rather than pool in the middle.
  • Easy to inflate Use a pump, or blow it up by hand if you have the lungs for it.
  • Built for outdoors Made to sit through a winter of water, cold and sun without going brittle.
  • Underinflate on purpose A pillow filled hard is the one that bursts. Around two thirds full leaves room for the air to expand and contract with the weather.
Full description and specifications ↓

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Product details

The Swimline 133002 is a 4 foot by 5 foot equalizer pillow, the air pillow that goes under a winter cover before the pool is closed for the season.

What it is for

Water expands when it freezes, and a covered pool left flat gives that expansion nowhere to go except sideways into the walls. An inflated pillow floating in the middle gives the ice something compressible to push against. At the same time it lifts the center of the cover, so rain and melting snow run outward to the edges instead of collecting into a heavy pond in the middle.

Inflating it

Use a pump or fill it by mouth, and stop well short of firm. A pillow inflated hard has no give left when the air inside warms up, and that is how they burst partway through winter. Around two thirds is the usual advice.

Sizing

This is the 4 by 5 size. Larger pools are often closed with more than one pillow so the cover stays supported across the whole surface.

Specifications
Brand Swimline
Manufacturer part number 133002
Type Winter cover equalizer pillow
Size 4' x 5'
Placement Under the winter cover, on the water
Inflation Pump or by mouth
Season Pool closing and winterizing
Shipping weight 1.5 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

What size is this pillow?
Four feet by five feet. Swimline make the equalizer pillow in several sizes so it can be matched to the pool and cover.
How full should I inflate it?
Not fully. Leave it soft, roughly two thirds, so the air has room to expand on warm days. A hard pillow is the one that splits.
What does the pillow actually do?
It sits under the winter cover on the water. Ice pushes against the pillow rather than straight out against the pool structure, and the raised center runs rain and snowmelt to the cover edges.
Do I need one pillow or several?
Larger pools often take more than one. The pillow needs to sit near the middle of the water surface and hold the cover up, so match the count to the pool size.
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