50′. Polyester reinforced to meet SAE 20R3 specifications. Handles corrosive solutions and additives. Resists engine heat, and weathering to provide long, trouble-free service life. Carton. No. 1825: Inside Diameter: 1/2″, Outside Diameter: 0.797″, Length: 50′, Grade: SAE 20R3 Specs, Pkg Qty: 1, Package Type: Box No. 1826: Inside Diameter: 5/8″, Outside Diameter: 0.922″, Length: 50′, Grade: SAE 20R3 Specs, Pkg Qty: 1, Package Type: Box No. 1827: Inside Diameter: 3/4″, Outside Diameter: 1.047″, Length: 50′, Grade: SAE 20R3 Specs, Pkg Qty: 1, Package Type: Box No. 1828: Inside Diameter: 1″, Outside Diameter: 1.344″, Length: 50′, Grade: SAE 20R3 Specs, Pkg Qty: 1, Package Type: Box