Filling adapter for carbonic acid for filling CO2 and argon cylinders with valves according to DIN 477-6 which have a flow-off protection/residual pressure valve. The thread W21.8 is used for all gas cylinder valves that are used for shielding gas welding, argon, helium, carbonic acid and argon mixed gases.
Blanking plug for R 5/8\" Valves with O-ring and Allen key. This dummy screw with G5/8\" external thread is suitable for the diving cylinder valves to which the rotatable second outlet 200 bar would fit. However, it can also be used to close an unused second outlet on the scuba tank valve. The blind plug is made of brass and is chrome-plated.