One Piece Design. Instead of using a 2 peice design like the number 326 bottle valves #660 valves use a 1 piece bottle nut and nipple that is sealed with the supplied teflon gasket.
Application. Number 660 style bottle nuts are used by some nitrous companies such as NOS and on some mother bottles. Nitrous Outlet, Nitrous Express, Zex and many other nitrous companies have switched to using the two piece number 326 design. Details:
- Number 660 Bottle Valve 4AN Bottle Nut
- For use with number 660 style bottle valves
- CNC machined aluminum
- Includes gasket
- For use with 4AN main feed line
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