Nitrous Express 1-1/8 O-Ring (Fits 5lb/10lb/12lb/15lb Bottle Valve)

3/4 O-RING FOR MOTORCYCLE BOTTLE VALVE (FITS 2.5LB BOTTLE),5/8 O-RING FOR MOTORCYCLE BOTTLE VALVE (FITS 2LB BOTTLES AND SMALLER), 1 1/8 O-RING (FITS 5-10-12-15LB BOTTLE VALVE)