ÖVGW Gas EN 331 with ÖNorm 7437 and QS-G137, ÖVGW drinking water certification PN10 acc. to EN 13828 with QS-W501/2, ÜA drinking water certification PN10 Austria, DVGW-approval acc. to gas appliance regulation GAR EU-2016-426, HTB certified acc. to EN 331 MOP5 B0,1, Suitable for drinking water, Classification acc. to PED category 1 PED 2014-68-EU, LABS conformity acc. to VDMA 24364