Comfort top part for drain valves DIN 3509 HD made of brass CW 617 N with reduced lead content according to DIN 50930-6 and German Environment Agency recommendation with toggle handle backflow preventer maintenance-free O-ring spindle sealing O-ring EPDM with KTW and W270 approval nominal pressure: PN 10 operating temperature: max. 90°C size: DN 20 (3/4) external thread surface: polished chrome-plated model: comfort comfort-no.: 89 00 389
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