Hayward S180T 18" Sand Filter System 1.1 HP Power-Flo Pump YGroup_Catalina water flow will stop when

water flow will stop when the cover is drained

making backwashing safe for the environment and easy for the pool operator

a weekly "shock" program is recommended

The heavy grade extruded aluminum top ledges

Hayward S180T 18" Sand Filter System 1.1 HP Power-Flo Pump YGroup_Catalina water flow will stop whenThe Hayward S180T Pro Series sand filter system offers excellent filtration with low maintenance. Hayward sand filters use specially graded sand to help trap particles and debris, providing crystal clear pool water. The filter sand can last 5 10 years between changes giving you a very economical filtration system that is simple to operate.