Brass Gas Adapter Converter W21.8 To G5/8 or G5/8 To W21.8 Cylinder Regulator Connector for Cylinder To Aquarium CO2 Regulator

Pressure : ＜850 kPa High-concerned chemical : None Hose Inner Diameter : 20mm Connection : Female Type : FEMALE Material : brass Origin : Mainland China Certification : NONE 1 : Female M14*1.5 ID 12.6mm to Male G5/8 OD 22.7mm Material : brass 2 : Female G1/2 ID 19.2mm to Male G5/8 OD 22.7mm 3 : Female W21.8 ID 20mm to Male G5/8 OD 22.7mm 4 : Female G5/8 OD 22.7mm to W21.8 ID 20mm