Scambiatore primario per caldaie Beretta: Exclusive 28 CAI, Exclusive 28 RAI, Exclusive Mix 30 CSI/AR, Exclusive Mix 32 CSI/AR, Exclusive Mix 30 RSI/AR, Exclusive Microcai 28 CAI, Exclusive Micromix 32 CSI/AR, Mynute 28 CAI, Mynute 28 CSI, Mynute 28 CAI N