Protects pool liners from freeze damage and reduces spring maintenance. This air pillow acts as an ice compensator that absorbs pressure from freezing water, helping prevent cracks and tears in your pool liner during winter. Key benefits Winter protection: Keeps expanding ice from pushing on the liner so you avoid costly repairs and unexpected spring maintenance. Durable, weatherproof construction: Coldresistant design and quality PVC resist cracking, leaks, and material breakdown during extended cold exposure. Fast setup and storage: Double valve system enables quick inflation and deflation — up to 10x faster air movement — and the pillow folds compactly for offseason storage. Lowmaintenance: Ropecentering method and corner sealing rings make installation straightforward and keep debris collected where it's easy to remove. Main features Function: Serves as an ice compensator and winterizing air pillow for maintaining liner shape and reducing freeze stress. Material: Built from quality PVC with a coldresistant structure for seasonlong stability without frequent reinflation. Valve system: Double valve design for rapid inflation/deflation and secure air retention. Installation aids: Includes easy ropecentering method and corner sealing rings to hold the pillow in place and manage debris access. Performance: Stable buoyancy through the season; designed to minimize leaks and maintain air pressure in cold temperatures. Tool setup: Install and remove without special tools; designed for straightforward handling by one or two people. Compatibility and use Intended for use with pool liners as an ice compensator during winterization. Fits standard pool applications where a liner needs protection from freeze expansion. Compact folding design lets you store the pillow without taking up significant space when not in use. Practical scenarios 1. Residential inground pools in cold climates: Place the pillow in the center of the pool before freeze cycles to reduce liner stress and avoid seam failure when ice forms. 2. Seasonal shutdowns and long absences: Inflate and center the pillow, then cover the pool for a worry offseason while maintaining liner integrity. 3. Routine maintenance turnarounds: Quickly deflate and remove the pillow in spring for easy cleaning and reopening, saving time on unexpected repairs. Installation and care Center the pillow using the included ropecentering method, secure corners with the provided sealing rings, and inflate via the double valve system. To remove, open the valves for rapid deflation, fold compactly, and store in a dry place. Clean the pillow before storage to remove debris; the corner ring design helps keep debris accessible during winter so it does not settle into the liner. What it solves Prevents liner damage from freeze pressure Reduces unexpected spring maintenance Minimizes time and effort for installation, removal, and storage This pool pillow offers a straightforward, durable solution to winterize pool liners with an emphasis on reliable performance, fast handling, and low maintenance.