Heater Hose Connector - 5/8 In. Tube x 5/8 In. Hose 47165 - The Home Depot
10 Straight O-Ring x 5/8” Heater Hose Barb Fitting - 121004 - Affordable Street Rods
Dorman - Autograde 3/4in Hose x 1/2in Npt x 2 3/4in Long Heater Hose Fitting
Nostalgic AC - Bulkhead Heater Hoses Only With Fittings
Heater Hose End Fitting - 90 Deg with 1/2" NPT and 5/8" Barb - Edelbrock, LLC.
JEGS 90806: Heater Hose Nipple Set | 1965-1972 Big Block Chevy Engines | Straight | Includes: (1) 5/8 in. I.D. Hose x 1/2 in. NPT x 1 1/2 in. L Fitting, (1)