ZEX #NS6583 Bottle Nut, Nitrous Oxide, Steel, Chrome, Fits 326 CGA Valve, Each. ZEX nitrous bottle nuts are designed to connect your -4 AN bottle nipple to your chrome ZEX bottle valve. They are made from steel and then chrome plated.
ZEX #NS6583 Bottle Nut, Nitrous Oxide, Steel, Chrome, Fits 326 CGA Valve, Each.