This Worcester Bosch siphon outlet elbow assembly is for use in the condensate trap of Greenstar and Greenstar ErP units. The condensate trap holds discharge that accumulates in the primary heating or cooling system caused by changes in pressure and temperature. A discharge pipe connected to the condensate trap sends held water out of the property. This pipe is ordinarily made of plastic that can withstand the low levels of acid present due to CO2 from the combustion process dissolving in the water.

Compatible with the following boilers: GREENSTAR 12RI FON-GB NG - 7716130137, GREENSTAR 24RI FON-GB NG - 7716130138, GREENSTAR 12RI FSP-GB LPG - 7716130151, GREENSTAR 24RI FSP-GB LPG - 7716130152, GREENSTAR 15RI CONVENTIONAL NG - 7716130153, GREENSTAR 15RI CONVENTIONAL LPG - 7716130154, GREENSTAR 18RI CONVENTIONAL NG - 7716130155, GREENSTAR 18RI CONVENTIONAL LPG - 7716130156, 12Ri ErP - 7733600074, 12Ri LPG ErP - 7733600075, 15Ri ErP - 7733600072, 15Ri LPG - 7733600073, 18Ri ErP - 7733600070, 18Ri LPG ErP - 7733600071, 24Ri ErP - 7733600068 & 24Ri LPG ErP - 7733600069.