Nitrous Express billet aluminum motorcycle/car bottle valve (3/4" thread) with O-ring is a machined main cap valve specified for 2.5 lb bottles. The billet aluminum construction and O-ring sealing design provide a service valve option for small-capacity bottles where a 3/4" threaded valve is required.
Nitrous Express Billet Alum M/C Bottle Valve 3/4in Thread w/O-Ring