The brass anti-siphon repair kit allows you to repair existing 3/4-in. and 1-in. female pipe thread (FPT) manual anti-siphon valves. The kit contains washers, O-rings and poppets found in the most common brass anti-siphon valves, including Orbit (51001, 51002, 51006, 51007, 51016, 51017, 51052, 51053, 51059, 57065, 57066), Champion (100, 200, 300, 350, 466, 466P, IASP, IASVA, IVBA, IVBAU), Rain Bird/LawnLife (ASV, ASVU, AV, AVU, SV, VB, VBU), Superior, and Hydro-Rain.