15611-12-12 Hydraulic Hose Swivel Assembly 3/4”ultra flexible hose, internal thread NPT x internal thread NPT. The 3/4" NPT hose assembly is made of high wear-resistant outer woven hydraulic hose. Working pressure: 3118 psi. A hose assembly is crimped at both ends to internal thread NPT x internal thread NPT. Inner core: Two layers of steel wire woven outer layer, temperature working range:-40 ℃ to +100 ℃/ -40 ℉ to +212 ℉.