Part Number: 5GVWT
eFireplaceStore Item Number: CPF-68560
When passing a vent pipe through a combustible wall, a thimble must be used in order to provide support for the vent pipe and to protect the surround materials from the vent generated during operation. This thimble is for use with the 5' DuraVent Type B gas vent pipes that are used to vent gas fireplaces, boilers, water heaters, and space heaters. The thimble adjusts so that it can fit walls from 3.5" to 6" thick. The part carries a 25-year warranty.