Majestic DuraTech 6" Unpainted Flat Ceiling Support Box cover Napoleon (A4758AK) Vent Reducer Kit

Napoleon (A4758AK) Vent Reducer Kit for BHD4 Only - Reduces 5/8 to 4/7

WiFi Guide

It accepts a 4" oval flue collar and converts it to a 4" round flue vent

Available unpainted or with a Matte Black finish

Majestic DuraTech 6" Unpainted Flat Ceiling Support Box cover Napoleon (A4758AK) Vent Reducer KitWith a Refractory insulation encased between dual walls, DuraTech offers the optimum in safety and performance. It keeps the outer wall of the chimney cool while ensuring high flue gas temperatures for optimum draft performance. What's Included Unpainted Flat Ceiling Support Box Features 6" DuraTech component Supports chimney pipe and provides a positive connection between support box and chimney with a built in twist lock. Designed for use in