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This 21131 Flow Control Valve is an OEM repair part for the bridge on these LaserWash systems: 4000, G5, 360, ProTouch Tandem, M5. This 90° elbow swivel needle valve has a 1/4" tube port, a 1/4" MPT port, and an adjustment screw. It moderates the flow of air supplying the triple foam. For optimal fit and performance, always use OEM parts when servicing your PDQ LaserWash.
The PDQ 21131 Flow Control Valve is a 90 degree elbow needle valve with 1/4" T x 1/4" MNPT ports. This valve is an OEM replacement part for the bridge section on several LaserWash automatic car wash systems - see list below. It's used to control the air flow for triple foam. This is the recommended part to replace a leaking, damaged, or missing flow control valve on your system; designed to fit perfectly and perform to the same standards as the original part.