DuraVent DuraFlex Pro 3" x 20' Stainless Steel Length d54 This high elevation kit is

This high elevation kit is specifically for use with your Williams Natural Gas 50

The WM-42-B features the stunning multi-colored state-of-the-art FIRE & ICE ® flame presentation

Reaching over 2 1/2 feet high

The Napoleon Black Keystone is made with strength and impressive looks in mind

Black Glass Charcoal

DuraVent DuraFlex Pro 3" x 20' Stainless Steel Length d54 This high elevation kit isDuraFlex Pro DuraFlex Pro is the ultimate in flexible steel liners for strength and flexibility. It features 20% more stainless steel per foot compared to other liners on the market. Its extreme flexibility facilitates problem free installations where multiple offsets are needed. DuraFlex Pro is available in 3 through 12 diameters in lengths, kits and custom lengths. DuraFlex Pro is manufactured utilizing highly corrosion resistant 316 Stainless