G1 Tap Adaptor with G3/4 Reducer. A reliable tap connectors, hose connectors and hoses are essential for an efficient watering system. Kärcher offers a complete range of accessories for connecting, disconnecting and repairing watering systems. For example, the robust tap connector 1″ thread with 3/4″ thread reducer. The reducer allows connection to two thread sizes. The universal hose repair connector is suitable for all standard garden hoses and is ergonomically designed for easy handling.