Biasi D.H.W Pressure Switch Membrane 1011102
This is used on Prisma 24SE and 28SE(1998). 24S and 28S.
Savio Gaia 24S and 28S(2001)
Ref: 1011102
Biasi Central Heating Pressure Membrane 1011103
This is used on Prisma 24SER Sealed System, Prisma 24SE and 28SE(1998).
24SR, 24S and 28S. Savio Gaia 24RS Savio Gaia 24S and 28S (2001)
Ref 1011103