DuraVent Round Type B Gas Vent Model BV 3" - 4" Appliance Increaser blue Adaptable Flame Shape: Includes spacers

Adaptable Flame Shape: Includes spacers and slots for customizable flame width and pattern

SAP Length 12 5/8" Diameter 7/8" Fits 3600 Series Lamp

The foam is non-toxic and flame retardant

Corten Steel & Stainless Steel Pan Material: 304 Stainless Steel 304 Stainless Steel 304 Stainless Steel Burner Material: 304 Stainless Steel 304 Stainless Steel 304 Stainless Steel Overall Dimensions: 72"W x 30"D x 15"H 72"W x 30"D x 15"H 72"W x 30"D x 15"H Certification: LC Certified None CSA Certified Assembly Required: Yes

DuraVent Round Type B Gas Vent Model BV 3" - 4" Appliance Increaser blue Adaptable Flame Shape: Includes spacersOur non positional lock system on the Duravent BV Gas Vent is the best lock system on the market today. The incorporation of the DuraTab feature simply improves our lock system by adding flexibility and meeting market needs. The BV line of Duravent round vent pipe and fittings is designed for use on approved gas appliances in residential and light commercial and industrial applications. What's Included (1) Appliance Increaser Features Use to increase