Val-Pak 1-1/2" MPT Spring Return Line Check Valve (V20-339) aquaflo internal assemblies like this are

internal assemblies like this are especially important because they help maintain the structure that distributes and gathers water through the media bed

and this Gecko DTEC version is rated at 1 amp with a 1/8 inch NPT connection using the 800240-3 reference

and a stainless with dark gray finish combination

Replacing the overlay keeps the panel aligned with its intended layout

An eight-button layout gives you more direct control over the spa

Val-Pak 1-1/2" MPT Spring Return Line Check Valve (V20-339) aquaflo internal assemblies like this areThe Val Pak 1 1 2 inch MPT spring return line check valve is designed for compatible plumbing applications where one way flow control is needed on a return line. A spring check valve is useful because it helps discourage unwanted backflow while creating a more controlled and predictable direction of water movement through the system. This replacement is especially useful when the original valve has started sticking, leaking backward, or no longer