Superior 4" Outside Air Kit for BRT40ST See-Through Gas Fireplace battery-powered unlike most canister fuel burning

unlike most canister fuel burning stoves

Includes 25 feet of compressed 5-inch flex duct

3125" (W) x 5

The average range of 25-30 feet

Shepherd's Hook Shovel

Superior 4" Outside Air Kit for BRT40ST See-Through Gas Fireplace battery-powered unlike most canister fuel burningWhat's Included Outside Air Kit Features For use if outside combustion air is required or desired. Must be used in conjunction with locally purchased, non combustible Class 1 or Class 0 flexible duct. For use with Superior BRT40ST B Vent See Through Gas Fireplace Specifications Model Number FOAK 4LD Catalog Number 81L88 Diameter Size 4" Compatible Fireplace BRT40ST