Waterway Pump Union [1-1/2" FBT x 1-1/2" FPT] (400-4230) marathonelectric PresAir Trol adjustable vacuum switch

PresAir Trol adjustable vacuum switch rated at 25 amps

A return header is useful because it helps manage water flow through the heater and serves as one of the key structural sections of the assembly

Application-focused replacement design for Correct Tech

Helps extend control-system reach cleanly over longer distances

The 010398F is a practical service part when a compatible Raypak 406A heater needs a burner tray to restore proper burner support and alignment

Waterway Pump Union [1-1/2" FBT x 1-1/2" FPT] (400-4230) marathonelectric PresAir Trol adjustable vacuum switchThe Waterway 400 4230 pump union is designed for compatible pump plumbing applications using a 1 1 2 inch female buttress thread connection and a 1 1 2 inch female pipe thread outlet. This style of union is useful where the pump must remain removable for service while the downstream plumbing requires a threaded female connection rather than a slip or spigot tailpiece. That specific connection format makes this Waterway union especially practical in