Square A/C and heater bulkhead fitting. The bulkhead fitting is great for running A/C and heater hoses through the firewall. The fittings on the bulkhead are standard A/C fittings: one #6 5/8″-18 and a #10 7/8″-14. The heater hoses fittings are 5/8″ heater hose nipples that use standard hose clamps to hold the hoses in place. The bulkhead can be polished or chrome plated with little effort.
The bulkhead measurse: 3-3/8″ x 3-3/8″
Fittings are not included