Selkirk 12" to 30" Pipe Increaser (Round Large - Type B Gas Vent) l17.5 48" Robertshaw - fits MVK-N

48" Robertshaw - fits MVK-N & P Series

Featuring solid walnut handles and base

black base and a grey

An integral part of the Real Fyre gas burner setup

Selkirk 12" to 30" Pipe Increaser (Round Large - Type B Gas Vent) l17.5 48" Robertshaw - fits MVK-NSelkirk 12" to 30" Pipe Increaser The increaser is used to increase the vent size. The maximum increase is 4 sizes. Round Large Type B Gas Vent Model R Double Wall Type B Gas Vent is designed for quick and easy installation. It's durability makes it ideal for multi family and commercial industrial applications. Featuring an aluminum inner liner designed to assure quick vent action and minimal condensation. Lightweight and easy to assemble with snap