Milton Industrial | Quality Solutions for Over 75 Years High-Quality Pneumatic Construction Hose The Milton Jack Hammer hose is made of heavy-duty reinforced rubber covered with 4 spiral layers for dependable strength. Resistant to heat aging, chemicals, and ozone. This EPDM product has a Rubber Manufacturers Association (RMS) class C rating. Designed for Industrial-level performance in all temperatures & weather conditions. Those who demand high-end performance from their hose, look no further! Ideal for air hammer tool applications on a broad range of job site applications. Specifications: Temperature range of -65 F° to 180 F° Rubber Air Hose: 3/4†ID Universal Coupler, 1. 1†OD & 50 ft. long Maximum Pressure: 300 PSI Hose Material: 4 layer EPDM synthetic rubber tube Universal Coupler: High quality hardened steel