Introducing The Cadac Gas Regulator Swivel 342; Your Solution For Safe And Flexible Gas Connections. This Swivel Regulator Is Designed To Ensure Easy And Secure Connections Between Your Gas Appliances And The Gas Cylinder. This 3/8 Inch Swivel Regulator Fits All Cadac L.P.G. Cylinders: 3 Kg ; 5 Kg & 7 Kg.