Hansen Check Valve Hi-Flo 50mm 212951 Each lever has a nut

Each lever has a nut fitted to the end

and then tighten the clamp

the Ball style 2 piece lid and band in the regular mouth size and any daisy lid

Jjar complete with glass lid

The recipes

Hansen Check Valve Hi-Flo 50mm 212951 Each lever has a nutPrevents fluid reverse flow Fast open close response Smooth valve opening at just 1 PSI "Hansen HiFlo check valve is used in line to stop fluids reverse flowing in the pipe. The unique Hansen design reduces flow restriction to the minimum. The screw cap allows for easy valve access for service or replacement of diaphragm and spring. (Replacement diaphragm and spring sets are common to both check valves and foot valves of same dimension.) BSPT thread.