Connect your pipes easily with the DuraVent W2-T18 standard tee. This standard tee is designed to be used for a 90-degree offset. It combines connections from the appliances into a common vent. It can also be as a condensate management point when used together with a drain fitting. Having completely welded inner walls, it measures 18 inches in diameter.Proving to be of quality, this DuraVent W2-T18 is made of a special type of stainless steel called AL29-4C that makes this tee extremely resistant to corrosion, cracking, and chloride ion pitting. This is listed as a UL product and it is also covered by DuraVents limited lifetime warranty when purchased.For anything that you need on your venting system, trust DuraVent and their quality products. Search one that you need now here at PlumbersStock.com.