Val-Pak V20-339 spa return check valve, 1.5 in. MIP fittingVal-Pak Spa Return Check Valve 1.5" MIP, V20-339 In stock$3599
Val-Pak V20-339 spa return check valve, 1.5 in. MIP fitting
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Val-Pak Spa Return Check Valve 1.5" MIP, V20-339

Ask a questionMPN V20-339
$3599
In stock
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Quick overview

  • Stops back draining Used in overflow spas so the spa does not empty out when the pump shuts down.
  • Standard 1-1/2 in. thread Male thread that goes into a standard 1-1/2 in. return fitting.
  • Check valve inside the eyeball The one way valve is built into the return eyeball, so there is no extra plumbing to add.
  • Straight swap Threads in where a plain eyeball fitting sits now.
  • The usual spillover fix A spa that quietly loses level overnight points at the return check valve first.
  • Val-Pak V20-339 The replacement part number for this fitting.
Full description and specifications ↓

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Product details

The Val-Pak V20-339 is a spa return check valve eyeball with a standard 1-1/2 in. male thread. It replaces the plain return eyeball in an overflow spa and adds a one way valve behind it.

The problem it solves

In a spa that spills over into the pool, the spa sits higher than the pool. When the pump stops, water in the spa wants to run back out through the return plumbing and into the pool. A check valve in the return holds it where it belongs.

Fitting it

The valve is contained in the eyeball, so nothing has to be cut into the pipework. It threads into the existing 1-1/2 in. return fitting in place of the eyeball that is there now.

If your spa is losing level to the height of the return and no further, this fitting is the first thing to check.

Specifications
Brand Val-Pak
Manufacturer part number V20-339
UPC 811636020559
Type Spa return check valve eyeball
Thread 1-1/2 in. MIP
Application Overflow spas
Shipping weight 0.1 lb
Ships Parcel

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Questions and answers

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

What does this fitting actually do?
It is a return eyeball with a check valve built in. Water flows into the spa while the pump runs, and the valve closes when the pump stops so the spa does not drain back through the return line.
What size is it?
It uses a standard 1-1/2 in. male thread, so it goes into a standard 1-1/2 in. threaded return fitting.
My spillover spa loses water overnight. Is this the part?
If the level drops to the return line and stops there, a failed or missing return check valve is the common cause. Suction side plumbing and the spillover itself are the other places to look.
Is this a Val-Pak part?
Yes. It is Val-Pak V20-339.
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