The DuraVent 3PVP-48AB is a pipe extension from the PelletVent Pro collection, designed to be used for stoves and inserts that are using oil fuel and wood pellets. It measures 3 inches in diameter and has a length of 4-46 inches. This is used to extend the length of your vent pipes. It has an outer finish of galvalume or painted black and is applicable for double wall construction.Safe, durable and highly resistant to corrosion, these are just some of the benefits that you can get when you buy from DuraVent, the highly-trusted brand for venting systems. Get one yours now here at PlumbersStock.com.