By Hayward Pool Products



Part # W3EC75A

Warranty 1 Year

Alternate Part #'s HAYW3EC75A

Product Description

Perflex Extended-Cycle D.E. filters clean pools fast, removing particles as small as one micron 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.


  • In-ground pools of all types and sizes


  • 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 Duralon™ for dependable, corrosion-free performance
  • Integral check valve prevents system backflow whenever pump is off  

Hayward D.E. Filter Systems

 Click here for more Hayward Filters  

Product Specifications

Port Size:
1 1/2 in.
Flow Rating:
100 GPM
Filtration Area:
40 sq. ft.
Turnover 8 Hrs.:
38400 gal.
Turnover 10 Hrs.:
48000 gal.

?     Asked on 8/4/2007by Guest

The manual says that a diverter valve can be installed for vacuuming to waste during heavy spring clean up or pulling rain water out of the pool. Where would it be installed? Do you sell this valve?

A  Answered on 8/4/2007 by InyoPools Product Specialist Patrick P.

Yes we do carry this diverter valve which you may view or purchase through this link http://www.inyopools.com/Products/07501352023400.htm This valve has 3 ports on it, the valve would screw into the disharge side of your pump and you can have the handle turned so the return water goes through your filter or you can turn the valve in the opposite direction so the dirty water goes to waste and bypasses your filter, this is very helpful when vacuuming or for heavy spring clean up.

?     Asked on 5/2/2013by Guest

Can this pool filter be used for above ground pools or is it strictly used for in ground pools?

A  Answered on 5/2/2013 by InyoPools Product Specialist Patrick P.

Yes, you can use an EC75 on an above ground. It would be over sized depending on the size of the pool.

?     Asked on 9/19/2014by Guest

Can this valve be used on a perplex ec75 for an in ground pool. It says on Hayward's site for above ground pools

A  Answered on 9/19/2014 by InyoPools Product Specialist Patrick P.

Yes this can be used with in ground pools. The Perflex is most commonly (in smaller sizes) used in above ground pools. So I'm sure that's what they were referring to.

?     Asked on 10/10/2014by Guest

What is the difference between ec75a & ec75?

A  Answered on 10/10/2014 by InyoPools Product Specialist Patrick P.

The new model number for the EC75 is the EC75A. There is no difference between the two models.

?     Asked on 10/15/2014by Guest

Is the tank only available for the ec75a?

A  Answered on 10/15/2014 by InyoPools Product Specialist Patrick P.

This body works on the ec65 and ec65a as well. Here is the parts breakdown for these units as well.  http://www.inyopools.com/pool_parts_hayward_perflex_filters_ec_65_ec_75.aspx


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