Johndow 8′ grease delivery hose – jdh-1014 john dow’s replacement grease delivery hoses are for use with their air-operated and grease delivery systems. These quality replacement hoses have a highly durable construction and are easy to use!! features: 8 ft. Grease delivery hose constructed from durable rubber material sae 100 r2 working pressure 5,000 psi rating 1/4 in. Male and female fittings