Hayward CAX-3511 Next Generation 1/4 inch injection check valveHayward CAX-3511 Injection Check Valve In stock$5499
Hayward CAX-3511 Next Generation 1/4 inch injection check valve
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Hayward CAX-3511 Injection Check Valve

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$5499
In stock
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Quick overview

  • Genuine Hayward Factory part CAX-3511.
  • Next Generation The current Hayward version of the injection check valve.
  • Quarter inch Sized at 1/4 inch for the injection line.
  • Polypropylene Polypropylene body, chosen for the chemistry it sits in.
  • One way flow A check valve lets chemical into the plumbing and stops pool water heading back up the line.
  • Wear part Injection checks live in the harshest spot on the system and are meant to be replaced on a schedule.
Full description and specifications ↓

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Product details

The Hayward CAX-3511 is the Next Generation injection check valve, 1/4 inch, with a polypropylene body. It is the genuine Hayward part.

What it does

An injection check valve is the one way door where chemical enters the plumbing. It lets the feed line push product into the flowing water and it stops that water, at system pressure, from traveling back up the small tubing toward the feeder or the pump. If it stops sealing, pool water gets into places that were never meant to see it.

Service life

This valve sits at the point of highest chemical concentration anywhere on the system, so it wears. Treat it as a scheduled replacement during routine service and it will not be the part that shuts a system down unexpectedly.

Specifications
Brand Hayward
Manufacturer part number CAX-3511
UPC 610377261692
Type Injection check valve
Series Next Generation
Size 1/4 in
Material Polypropylene
Shipping weight 1 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

What size is it?
1/4 inch.
What is it made of?
Polypropylene.
Why does an injection point need a check valve?
So flow only goes one way. Chemical passes into the plumbing, and pool water cannot push back up the injection tubing toward the feeder or the pump.
How often should it be replaced?
It is a wear part. Injection checks sit at the point of highest chemical concentration on the system, so plan on renewing it as part of routine service rather than waiting for a failure.
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