Sprinkler Blowout Adapter (US garden hose 1" to 1 3/8")
thingiverse
If you have air compressor, you can do sprinkler blowout for winterization. Some compressor like CRAFTSMAN Air Compressor (6 Gallon) comes with adapter that let your blow air into US standard garden hose (1"). This adapter here converts the 1" to the sprinkler feed pipe of 1 3/8".
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