Perflex Extended-Cycle D.E. filters clean pools fast, removing particles as small as two microns the first time through. Its patented Flex-Tube™ design gives longer cycles between cleaning because the same D.E. filter powder is used over and over. Plus, Perflex cleans without backwashing, saving hundreds of gallons of treated pool water. An exceptional value as a replacement filter or for new pool installations. For sparkling, clean pools, step up to Perflex.
 

Features:

Exclusive bump handle activates the mechanism causing the Flex-Tubes to instantly and uniformly clean themselves of dirt and filter powder
Self-venting design automatically expels any air that may be present in the system
Proven, patented Flex-Tube filter elements efficiently reuse the filter powder and dirt mixture forming a fresh filtering surface
Combination pressure gauge and threaded inspection/service port is easy to read and remove when filter needs cleaning
Heavy-duty filter tank injection-molded of high-strength for dependable, corrosion-free performance
Integral check valve prevents system backflow whenever pump is off.

 As a rule of thumb, the EC40 Filter is for pools 15’ and under. The EC50 is the most popular size and is for pools 18’-24’. The EC65 is for large Above Ground pools over 24’.

EC40AC - Hayward Perflex EC40 DE Filter
EC50AC - Hayward Perflex EC50 DE Filter
EC65A - Hayward Perflex EC65 DE Filter