3 In 1 Hose Faucet x Drip Lock Adapter, Contains A Pressure Regulator, Faucet To Tubing Adapter & A Filter, Attaches 1/2" Drip Tubing To A Hose/Faucet, .690, .700 & .710 OD, Regulates Water Pressure To 20 PSI, Easy To Clean Filter Screen, For Outdoor Use With Cold Water Only, For Irrigation Applications Only.