GRACO VALVE, ASSY, CHECK, APD - (SKU: 21937-00)The GRACO 21937 00 is a check valve assembly designed for use in GRACO APD (Advanced Pressure Delivery) equipment. Its material is not specified in available sources, but it is intended to control and maintain fluid flow direction, prevent backflow, and ensure reliable operation within high pressure fluid handling systems. Key Features: Check Valve Assembly Designed for GRACO APD equipment Prevents backflow in fluid systems Supports reliable operation

interior texture spraying

and other spray finishing applications

supporting routine maintenance and equipment longevity

suitable for vehicle maintenance

Uniform and consistent retraction every time

1/2 NPT (M x F)

The GRACO 289189 KIT

and agricultural environments where quick hose changes and reliable connections are required

suitable for handling stains

It features a polypropylene wetted bottom housing and a Buna-N (BN) bladder

Used in heavy-duty fluid handling systems

Essential for efficient operation of air-powered tools and equipment