Fits all standard paintball tanks Compatible with both 3, 000 and 4, 500 psi tanks Includes a bonus Captain O-Ring Microfiber Cloth! Item includes one (1) fill nipple and one (1) CO microfiber cloth International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions., Weight: 0.05070632026 Pounds, Manufacturer: Captain O-Ring