Inlet size

0.125 BSPP
0.125 BSPT
0.125 NPT
0.125-27 NPTF
0.125-27 NPTM
0.250 BSPP
0.250 BSPT
0.250 NPT
0.250-18 NPTF
1 IN
1/2 IN
3/4 IN
3/8 IN
4 mm, Plastic Tubing Fitting
4 mm, Plastic Tubing Fitting Screwed Into A M3 Port
4 mm, Plastic Tubing Fitting Screwed Into A M5 Port
4 mm, Plastic Tubing Fitting Screwed Into A M6 Port