Part No: 87161066860. Boiler Spares Part Number 87161066860. Worcester Greenstar 12 i System - 41-311-67. Worcester Greenstar 12 i System LPG - 41-311-69. Worcester Greenstar 15 i System - 41-311-84. Worcester Greenstar 15 i System LPG - 41-311-85.
eBay