Hayward SPX0740C key stem assembly for the SP0740DE 2 inch Selecta-Flo valveHayward Key Stem Assembly for SP0740DE Valve, SPX0740C In stock$8499
Hayward SPX0740C key stem assembly for the SP0740DE 2 inch Selecta-Flo valve
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Hayward Key Stem Assembly for SP0740DE Valve, SPX0740C

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$8499
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Quick overview

  • Genuine Hayward part The factory SPX0740C key stem assembly.
  • For the SP0740DE Built for the 2 inch Selecta-Flo multiport valve used on DE filters.
  • Key and stem together Supplied as an assembly, so the stem and the rotating key are matched.
  • Fixes water going the wrong way A worn key lets flow pass between ports no matter where the handle sits.
  • The main wear part The key faces the seat and takes every position change the valve has ever made.
  • Change the seat gasket too The valve seat gasket wears against this part and is best replaced at the same time.
Full description and specifications ↓

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Product details

This is the Hayward SPX0740C key stem assembly for the SP0740DE, the 2 inch Selecta-Flo multiport valve fitted to DE filters. It is the genuine Hayward part.

What the key does

The key is the rotating piece inside the valve. Every time the handle is moved to filter, backwash, rinse or waste, the key turns and its face reseals against the seat below. That face does all the work and takes all the wear, which is why it is the part that eventually stops sealing.

Symptoms of a worn key

Water going to waste while the valve says filter, water that will not fully leave a port, or a valve that leaks past no matter how it is set. Those are the classic signs. Because the key and the seat gasket wear against each other, the gasket is usually tired by the time the key is, so plan to change both while the valve is open.

Supplied as an assembly

The key and stem come together, so there is no need to press a stem into an old key or fight a corroded joint between the two.

Specifications
Brand Hayward
Manufacturer part number SPX0740C
UPC 610377036047
Type Key stem assembly
Valve size 2 inch
Part type Filter valves part
Fits Hayward SP0740DE 2 inch Selecta-Flo valve
Shipping weight 0.72 lb
Ships Parcel

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Questions and answers

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

Which valve does this fit?
The Hayward SP0740DE, the 2 inch Selecta-Flo multiport valve.
Is the handle included?
This is the key stem assembly. The handle and the cover are separate Hayward parts.
Is it a genuine Hayward part?
Yes. It is Hayward part number SPX0740C.
Water keeps returning to waste in the filter position. Is this the cause?
Often, yes. A worn key no longer seals against the seat, so flow crosses between ports. The valve seat gasket is the other usual suspect and is worth replacing alongside.
Ask your own question