Collection: Threaded Fasteners

Check-All® F1 Style Flange Insert Check Valve - 1" NPS, 3.50 PSI Standard Cracking Pressure

1 Inch FP Style Flange Insert Check Valve

3/4 Inch F1 Style Flange Insert Check Valve

1-1/4" Check-All FP Style Flange Insert Check Valve

2" F6 Style Flange Insert Check Valve - SS Seat, 0.500 psi Cracking Pressure

F6 Style Flange Insert Check Valve - 1" Nominal Pipe Size, 1.50 psi Cracking Pressure

1/2" F1 Style Flange Insert Check Valve - 3.50 psi Cracking Pressure

FP Style 3/4” Flange Insert Check Valve - 3.50 psi Cracking Pressure, Check-All®

Check-All® F6 Style Flange Insert Check Valve - 3" NPS, 0.500 PSI

Check-All F1 Style 1-1/4" Flange Insert Check Valve

Check-All F6 Style Flange Insert Check Valve - 2" Nominal Pipe Size, 0.125 psi Cracking Pressure

1-1/4 Inch FP Style Flange Insert Check Valve with 3.50 PSI Standard Cracking Pressure

Check-All® F6 Flange Insert Check Valve - 1/2" Nominal Size

1/2in Flange Insert Check Valve - FP Style, 1.50psi Standard Cracking Pressure

Check-All F1 Style Flange Insert Check Valve - 2-1/2 in, 0.125 psi

Check-All® F1 Flange Insert Check Valve, 3/4 in, 1.50 psi Cracking Pressure