Check valve 3/8 PN63 SK HST 2455

Check valve acid-proof 1/2 PN63 female thread 2455

Check valve with spring 1/2 HELA 4125 brass

Check valve with spring 1 1/4 HELA 4125 EM

Check valve, metal-seated, red metal, 1/2"

Check valve, metal-seated, red metal, 3/4"

Check valve, butterfly valve metal seal 1

Check valve, metal-seated, red metal, 1 1/4"

Check valve, metal-seated, red metal, 1 1/2"

Check valve, metal-seated disc, red metal 2