What Adapter For

Outdoor and garden connections

Garden hoses, outdoor faucets, pressure washers and drip irrigation: the sizes and the adapters that join them.

Garden hose fitting size3/4" garden hose thread, on every size of hose. Hose thread vs pipe threadWhy a 3/4" hose won't screw onto 3/4" pipe, and the adapter that joins them. Connect two garden hosesMale into female directly; a double connector for two of a kind. Garden hose to 1/2" pipeA 3/4" MHT x 1/2" FIP brass adapter, and the other combinations. Garden hose to 3/4" pipeClose in size but a different thread: you still need an adapter. Garden hose to PVCA slip x hose-thread fitting glued onto the pipe. Replacing an outdoor faucetMatch the pipe size, the connection, and for a frost-free one, the length. Sprinkler head thread sizeRain Bird and Toro spray heads take 1/2"; Rain Bird rotors are 1/2" or 3/4". The riser tells you. Garden hose to pressure washerThe 3/4" hose inlet, and the outlet fittings that vary by brand. Drip tubing sizesSo-called 1/2" tubing comes in .620", .700" and .710" outside diameters. Garden hose to drip irrigationA drip faucet kit, then an adapter for your tubing size. Connect different drip tubingBrands differ in size: match the outside or use a universal coupling.

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General guidance from manufacturer and standards data. Parts vary by brand, so check the size printed on the package against what you measured. For gas lines or anything inside a wall, use a licensed plumber.