COASS-NS4
316 SS, COA Series Check Valve, One Piece Body, Adjustable Cracking Pressure, 1/4 Male NPT, Fluorocarbon FKM O-ring, 3000psig(207bar), -10°F to 375°F(-23°C to 190°C), Cracking Pressure 3 to 50psig(0.21 to 3.4bar)
COASS-NS8
316 SS, COA Series Check Valve, One Piece Body, Adjustable Cracking Pressure, 1/2 Male NPT, Fluorocarbon FKM O-ring, 3000psig(207bar), -10°F to 375°F(-23°C to 190°C), Cracking Pressure 3 to 50psig(0.21 to 3.4bar)