This part fits: SARGON 24 (HYDROBLOCK GROUP) SARGON 30 (HYDROBLOCK GROUP) SARGON 35 (HYDROBLOCK GROUP) SARGON 20S (HYDROBLOCK GROUP) SARGON 24S (HYDROBLOCK GROUP) SARGON 30S (HYDROBLOCK GROUP) VISO+ 24 (HYDROBLOCK GROUP) CAPRIZ 25 (HEAT EXCHANGER) CAPRIZ 28 (HEAT EXCHANGER) CAPRIZ 25S (BURNER GROUP) CAPRIZ 25S (HEAT EXCHANGER) CAPRIZ 28S (BURNER GROUP) CAPRIZ 28S (HEAT EXCHANGER) HYDROLINE B24 (HEAT EXCHANGER) COMPACT S20S (HEAT EXCHANGER) COMPACT S24S (HEAT EXCHANGER) COMPACT S30S (HEAT EXCHANGER) COMPACT S24 (HEAT EXCHANGER) COMPACT S30 (HEAT EXCHANGER) CAPRIZ C24 (HEAT EXCHANGER) CAPRIZ C24 (CONDENSING UNIT) CAPRIZ C28 (HEAT EXCHANGER) CAPRIZ C28 (CONDENSING UNIT) VIZO 24 (HEAT EXCHANGER) VIZO 24 (CONDENSING UNIT) STAR24 (HYDROBLOCK GROUP)