EMEC 1/2" male thread injection valve with check valve
Product Information "1/2" Male Thread Injection Valve with Check Valve"

made of polyvinylidene fluoride (PVDF) .It suitable for chlorine or pH-minus injection. The package contains 5 individual parts 

1/2" male thread
Check valve
Up to 0.3 bar
Connection to pressure hose (fixed) 6/4 mm
Length approx. 80 mm, thickness approx. 27-31 mm