NON RETURN VALVE This clover valve and designed it to fit in line in a simple way to maintain prime in a suction or discharge line.
Suitable for use with manual or electric pumps and accepts either 25mm (1") or 38mm (1 1/2") i.d. tubing.
Separate model for 18mm (3/4")tube.
Part Numbers 13221,13222
Manufactured by Tru-Design