Can anyone identify this outside faucet that has a standard garden hose thread - but with a flat on each side that causes any attached hose to leak.
Specifically I need an adapter so I can get a regular garden hose onto this thing.
The outside diameter of the thread is about 1.05 inches. The diameter across the flats is 0.92 inches. The inside diameter of the faucet is 0.71 inches. Any help us appreciated.
Further info: inscription says “Watts-No.8A
googles indicate a Back Siphon Backflow Preventer?