vnútorný priemer 37 mm, vonkajší priemer 44 mm
Ariston
AEG AEG EWH Basis 30, 50, 80, 100, 120, 150, 200 N
Tatramat Tatramat EOV 82, EOV 122, EOV 152, OVK 82, OVK 122, OVK 152
Wterm Wterm ECO