Baxi Expansion Vessel 5114692

These Baxi expansion vessels are designed for use with Duo-tec, Platinum, Main Eco, Main Eco Elite, Apollo, Gold, Heatmax, Promax and Titanium boilers. An expansion tank, a chamber designed to protect a water heating system from overpressure, is filled with air that acts as a buffer against pressure surges in the system. This part fits: 33 HE LPG 40HE 28 Eco 30 Eco Elite 25 Eco Elite 25 Eco Combi 40 HE A Combi 28 HE Combi 24 HE 40 HE A 33 HE A 33 HE 28 HE 24 HE Combi 33 HE Plus A Combi 33 HE Plus Combi 28 HE Plus 24 Eco Elite 24 Eco 30 Eco Combi 40 HE Combi 33 HE A Combi 33 HE Show More Show Less