allowing air to flow into the pipe system and creating the necessary pressure equalization

Cables can also be concealed that would otherwise lie untidily along the wall

The roll ring can be purchased separately from the German stoneware industry

Backwater valve simple ERV

- DN 55-65 (EAN 338118)

Verbindungsmuffe aus Edelstahl Connection pipes in mm:Ø 125 allowing air to flow intoConnection sleeve for connecting plastic flexible hoses and flexible aluminum ventilation ducts, made of stainless steel EAN 061207 EAN 061214 EAN 061238 Dimension 100 mm 125 mm 150 mm length 85 mm 85 mm 85 mm Free Air passage 70 cm 113 cm 164 cm