- New
6115A1 is an Attwood check tee designed for RV and marine freshwater hookups. It combines a check valve and tee to allow water to enter from the dockside connection without filling the freshwater tank. The inlet includes a removable 3/8" barb that can accommodate 1/4" NPT when removed, while the outlet is 1/2" NPSM. Constructed of ABS plastic, it is intended for compatible RV and marine water systems.