Outdoor Water Solutions® Freeze Control System. Avoid a frozen aerator air line this winter!
The self regulating Outdoor Water Solutions Freeze Control System monitors changes in line pressure. If it detects a blockage, it automatically squirts nontoxic ethanol or nontoxic isopropyl alcohol (not included) into the air line to break up the ice. Strongly recommended in colder climates where below freezing temperatures are common. Made in U.S.A. 14 x 14 x 14". 4 pounds.