Sizes range from 3/4" to 2" inches. Construction: Phosphate Ester resistant EPDM synthetic rubber tube, 4 spiral plies of high tensile steel wire reinforcement, and a phosphate ester and weather resistant, green synthetic rubber cover. Applications and Temperature Range: Phosphate ester base hydraulic fluids within a temperature range -40C to +80C(-40F to +176F). Water,water/oil emulsion, and water/glycol hydraulic fluids up to +85C(+185F). Air within a temperature range of -40F to +158F(-40C to +70C). For air above 250psi(1,7MPa), the cover should be pin-pricked. Fittings: 71 series