The Hayward W3EC75A Perflex Extended-Cycle D.E. filter cleans pools fast while removing particles as small as one micron the first time through. Using its patented Flex-Tube design, the Perflex gives longer cycles between cleaning because the same D.E. filter powder is used over and over. On top of that, the Perflex cleans without backwashing, saving hundreds of-Gallon of treated pool water. This filter is an exceptional value as a replacement filter or new pool installations.

• Exclusive Bump system gives you longer filter cycles
• Simply bump the handle to redistribute the D.E.
• Self-venting design automatically expels any air
• Proven, patented Flex-Tube filter elements
• Pressure gauge and threaded inspection/service port
• Heavy-duty filter tank injection-molded thermoplastic
• Maximum pool size 60,000 gallons
• Requires 7 lbs of DE (diatomaceous earth) - not included
• Applications: In-ground pools of all types upto 60k gallons