Campmaster Gas O Ring SKU: 082548 MODEL: CM4720OR Error. try again later You've successfully joined the club $ 2 .38 each Available on orders $50 to $1500. More info × Mitre 10 SAvailable at selected stores. Check your local store for details Variants Campmaster spare O-Ring gas regulator. All gas appliances must only be used in well ventilated areas. Check for leaks with soapy water before use. Features and benefits Fits CM4720 regulator.