These AC fittings are the best to use to install your classic car air conditioning! The fittings are reusable, no clocking required perfect for on the spot installation, no expensive crimping tools needed, no running to the AC shop for crimping, and easy to install using the correct hose! Buy your hose, install players, and the fittings from VMACS, best price, fast shipping, outstanding customer service. Scott at VMACS even answered my email after hours! In addition, one item I ordered wrong they corrected it on the order and it went out with the rest of my order. Also, one fitting I required was out of stock, emailed Scott he gave me a contact in Virginia, called his contact got my fitting! They really know how to do business here, best price and fast shipping! Five star service and products! Best customer service ever!