GLI 4'x15' Blue Air Pillow 500415AP Chlorinators Avoid adding large amounts at

Avoid adding large amounts at once to prevent overcorrection

providing long-lasting reliability in wet or humid conditions

Spa-friendly: Won't foam

handling pools from 6

Component: Tube bundle (heat exchanger)

GLI 4'x15' Blue Air Pillow 500415AP Chlorinators Avoid adding large amounts atGLI 4'x15' Blue Air Pillow 500415AP Protect your above ground pool this winter with the GLI 4' x 15' Blue Air Pillow, intelligently designed to support your winter cover by raising it and allowing water to run off easily. This sturdy vinyl pillow reduces pressure from freezing water, helping shield your pool walls from damage caused by ice expansion and winter weather. Key Features & Benefits: Heavy Duty 20 Gauge Vinyl: Durable construction withstands