Zehnder Filter for Dia 125mm Extract Air Valve, ISO Coarse (G3), 10 pcs 990 322 031 set out in DIN 1946-6
Baker’s notes & crumb story
Description
Zehnder Filter for Dia 125mm Extract Air Valve, ISO Coarse (G3), 10 pcs 990 322 031 set out in DIN 1946 6 set out in DIN 1946 6 with a much thinner wall thickness (43 mm reduced from 60 mm) The Airflow Filter Pack contains 10 x F7 filters suitable for use with the DV250 Heat Recovery Unit