The Nitrous Express 3AN B-nut and sleeve in black is a replacement nitrous bottle nut sold individually. Intended for use with standard 3AN fittings, it provides a neat, black-finished connection point in nitrous plumbing and bottle hardware. As a service or spare part, the B-nut and sleeve restore secure fittings and maintain tidy, consistent mounting in a nitrous system installation.
Nitrous Express 3AN B-Nut & Sleeve - Black