High Pressure Hose, Rubber, {32 in | 81 cm} - The typical HP hose is a 7/16-inch male at the end that screws into the first stage HP port and a 7/16-inch female at the end that screws on to the SPG Our most popular HP hoses are {24 in | 61 cm} long for doubles, {26 in | 66 cm} long for singles, and {30 in | 76 cm} long for consoles. Length is measured from end to end of hose, including the fittings and their threads. All of these hoses are Nitrox Ready.