Automatic vent valve, Wolf 8601871

GU-2EK, GU-2E, GG-2EK, GG-2E, TGU, TGU-K, TGG, TGG-K, GU-2E-S2001,
GU-2EK-S2001, GG-2E-S2001, GG-2EK-S2001
Manufacturer No.: 8601871