SUSTAIN SUMMER SHIELD Size:1/2 Gallon Walls & Waterline – Complete

Walls & Waterline – Complete pool cleaning in one cycle✔ Dual Roller Brush System – Scrubs pool surfaces for deeper cleaning✔ Large-Capacity Filter Basket – Captures fine particles and debris✔ Extended Battery Runtime – Cleans large pools on a single charge✔ Wireless Charging Dock – Easy and convenient charging between cycles✔ Smart App Connectivity – Monitor cleaning status and settings from your phone

They are competitively priced despite their durability

This product treats and prevents green

This 2-part system is easy to use and convenient to chlorinate

SUSTAIN SUMMER SHIELD Size:1/2 Gallon Walls & Waterline – CompleteSustain Summer Shield provides pool water with an extra level of protection against algae. It does this by creating a backup of chlorine that is released on demand when routine sanitizing levels drop (below 1ppm), such as after a pool party or thunderstorm. Sustain Summer Shield chlorine extender also contains a clarifier to assist your filter keeping your pool crystal clear. Sustain Summer Shield is designed for use with the Sustain 3 Part System.