Multi 2-way faucet coupling Connect two separate hoses to a water ejector with Fiskars Multi 2-way faucet coupling. Thanks to an independent and user-friendly coupling valve, you can turn the water pressure to both hoses separately. This double hose coupling is supplied with threads to fit the three most common faucet sizes; Ø 21 mm (G 1/2") Ø 26.5 mm (G 3/4 ") Ø 33.3 mm (G 1").