Abstract: A sanitary fitting of the type that is used to connect, in back-to-back relationship, a hot and cold water source without the necessity of crossing the pipe connections, is disclosed. The sanitary fitting includes a valve assembly which, when mounted in back-to-back relation with another sanitary fitting, the valving mechanism is arranged and constructed to reverse the flow of hot and cold water through the valve, so that the fitting can be operated in its normal mode, for example, when the handle is in the left-hand position, the hot water flows and, when the handle is in the right-hand position, cold water flows.

Abstract: The invention is directed to a non-clogging flow restrictor for use in a faucet. The flow restrictor is slotted with the sides of the narrow slots either parallel to each other or divergent from each other relative to the entrance side of the respective slot. However, the length of the slots on the entrance side is considerably longer than the length of the slots on the exiting side of the restrictor. Because of this, the invention can tolerate a substantial collection of particles at the leading or flow entry edges of the slot or slots without affecting the designed flow rate.