Top Brand Check Valve, 1/8 in, Single, Inline Piston, Stainless Steel, FNPT x FNPT - CHK SST 215-2F2F-F Width-12" The Universal Plus pad is

The Universal Plus pad is chemically inert and designed for use with aggressive fluids

Arrive fully assembled and can fold flat in seconds

or other equipment is recommended for removal of units with large amounts of silt

Extra-large window lets you know when it's time to refill

Mat has yellow border that complies with OSHA Code 1910-144

Top Brand Check Valve, 1/8 in, Single, Inline Piston, Stainless Steel, FNPT x FNPT - CHK SST 215-2F2F-F Width-12" The Universal Plus pad isThis compact spring check valve can be installed in tight spaces to provide backflow protection for a variety of applications. The first connection listed is the direction of flow. The poppet design provides a positive seal down to approximately 1 2 psi.