Name: Hayward PerFlex Extended-Cycle D.E. Pool Filter 25 Sq Ft W3EC50AC
Brand: Hayward
SKU: W3EC50AC
Price: 729.00 USD
Availability: InStock

The Hayward PerFlex W3EC50AC is a 25 sq ft extended-cycle D.E. pool filter for above ground and small in-ground pools. Patented Flex-Tube bump-to-clean design requires no backwashing. 5 lbs D.E. capacity, 50 GPM max flow, easy-access clamp assembly, 1.5" plumbing. Replaces EC50AC. 1 year warranty.

SKU: W3EC50AC (replaces EC50AC)
1 year warranty
25 sq ft extended-cycle D.E. pool filter; 50 GPM max flow
Patented Flex-Tube bump-to-clean design; no backwashing required
5 lbs D.E. capacity; D.E. powder not included
Removes particles as small as 2 microns
Bump handle causes Flex-Tubes to instantly purge dirt and powder; D.E. is reused rather than discharged
Self-venting design automatically expels air from the system
Easy-access clamp assembly for service
Combination pressure gauge and threaded inspection/service port
Heavy-duty injection-molded thermoplastic tank
1.5" plumbing connections
For above ground and small in-ground pools

Hayward PerFlex W3EC50AC Extended-Cycle D.E. Pool Filter

The PerFlex W3EC50AC delivers 2-micron D.E. filtration without the maintenance of a conventional grid D.E. filter. No backwash valve, no drain line, no fresh D.E. needed after each cleaning. When pressure rises 10 to 12 PSI above the clean baseline, stop the pump and stroke the bump handle 8 times. The Flex-Tubes flex and shed the loaded D.E. cake; dirty and clean D.E. mix together and recoat the tube surfaces. Restart the pump. In most cases pressure returns near baseline and filtration continues without adding any fresh powder. A full 5 lb recharge is only needed when bumping no longer restores acceptable pressure after the sump is drained.

D.E. powder is not included. You will need 5 lbs of pool-grade diatomaceous earth for the initial charge. Use only pool-grade D.E. and pre-mix it into a slurry before adding it through the filter with the pump running.

Hayward PerFlex W3EC50AC D.E. Filter Specifications

SKU / Model

W3EC50AC (replaces EC50AC)

Filter Type

Extended-cycle D.E. (Flex-Tube); bump-to-clean

Filter Area

25 sq ft

D.E. Capacity

5 lbs pool-grade D.E. (not included)

Max Flow Rate

50 GPM

Filtration Range

2 microns

Backwash Valve Required

Cleaning Method

Bump handle; no backwashing needed

Housing Closure

Easy-access clamp assembly

Port Size

1.5" plumbing

Air Relief

Self-venting; automatically expels air

Tank Material

Heavy-duty injection-molded thermoplastic

Pool Application

Above ground and small in-ground pools

Warranty

1 year

Hayward PerFlex W3EC50AC D.E. Pool Filter Frequently Asked Questions

How do I clean this filter?

When operating pressure rises 10 to 12 PSI above the clean starting pressure, stop the pump and stroke the bump handle 8 times (down slowly, up briskly). The Flex-Tubes flex and shed the loaded D.E., which redistributes and recoats the tube surfaces. Restart the pump. No backwash, no fresh D.E., no disassembly needed. When bumping alone stops restoring pressure, drain the sump at the base of the filter. A full D.E. recharge is only required when both bumping and draining no longer restore acceptable pressure.

Does D.E. powder come with this filter?

No. You need 5 lbs of pool-grade diatomaceous earth, purchased separately. Pre-mix the powder into a slurry with water in a bucket, then add it through the filter inlet with the pump running. Do not use food-grade, pest-control, or industrial D.E. products.

Is this filter for above ground or in-ground pools?

Primarily above ground pools. Hayward lists the W3EC50AC for above ground and small in-ground pool applications. For larger in-ground pools with a higher-output pump, the W3EC65A (27 sq ft, 67 GPM) is the more appropriate choice.

D.E. is appearing in my pool. What does that mean?

D.E. in the pool through the return fittings means one or more Flex-Tube elements has a hole or seam failure. Stop the pump immediately, open the filter housing using the clamp, and inspect each tube individually. Replace any tube with a visible breach before restarting.

Is this a direct replacement for the EC50AC?

Yes. W3EC50AC is the direct replacement for EC50AC with the same specifications and Flex-Tube design.

Hayward PerFlex W3EC50AC Extended-Cycle D.E. Pool Filter

Hayward PerFlex W3EC50AC D.E. Filter Specifications

Hayward PerFlex W3EC50AC D.E. Pool Filter Frequently Asked Questions

Hayward PerFlex W3EC50AC D.E. Pool Filter Manual and Warranty Info

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