Baxi brand condensate trap plug assembly is for use in Duo-tec, Duo-tec ErP, Megaflo, Megaflo ErP, Platinum, Platinum +, Platinum ErP, System IE, Main Eco Elite ErP, Gold, Gold ErP, Heatmax, Promax, Promax ErP, Titanium and Titanium ErP boilers. The condensate trap holds discharge that accumulates in the primary heating or cooling system caused by changes in pressure and temperature. A plastic discharge pipe connected to the condensate trap sends held water out of the property because it can contain low levels of acid due to Carbon dioxide from the combustion process dissolving in the water.