Nitrous Express Adapter Fitting, 4 AN Male, 1" Female, Aluminum, Black (Gasket Included) SKU NXS-11713 $21.70 Quantity discounts available QuantityPrice (0)No Reviews yet Number of Pieces Item Custom Price Quantity -+ Add to Cart Details 4AN bottle nipple & nut for CO2 valve. This will include the necessary gasket. Details Back Details4AN bottle nipple & nut for CO2 valve. This will include the necessary gasket. Ratings & ReviewsNo reviews availableBe the first to Write a Review