supply of two stage pressure regulators for co2 gas cylinder class-1 with maximum rated inlet pressure of 200-230 bar and maximum rated outlet pressure of 0-10 bar conforming to is: 6901 / 2009 with stainless steel diaphragm at first stage and neoprene rubber diaphragm at second stage and inlet with ceramic filter. make: gce pc no: 0772031 ( or ) make: messer pc no: ms77025082 ( or ) make: esab pc no: duraco2- 4330180500 note: to be supplied by authorized dealers only. a copy of dealership certificate to be enclosed while quoting the tender. and manufacturers test certificate should accompany the supply. warranty period: 24 months from the date of supply [ warranty period: 24 months after the date of delivery ] => limited