detail rated outlet pressure: 15mpa.can fasten the of the co2 regulator tightly. you use it with confidence., carbon dioxide regulator 320 cga nut, product usage: fasten the of the co2 regulator tightly. high quality material: the nut is made of high quality brass, anti, heat resisting and use the washer to relieve the pressure and prevent damaging the nut and nipple. cga 320 regulator, nipple, nut, regulor, cga320 adapter, co2 regulator nipple left hand thread, brass co2 cylinder to regulator adapter, gas connector