Hard Lines Vibrant Vibrant 1/2in OD (12.7mm) Hard Line - 25 Foot Spool 1/2"ODAlHardLine25Ft 1/2"ODHardLine25Foot Fuel Line Vibrant 3/8in OD (9.5mm) Hard Line - 25 Foot Spool 3/8"ODAlHardLine25Ft 3/8"ODHardLine25Foot Fuel Line Vibrant 5/16in OD (7.95mm) Hard Line - 25 Foot Spool 5/16"AlHardLine25Ft 5/16"ODHardLine25Ft Fuel Line