SELKIRK Round Wall Thimble- Black- 4" x 6 5/8" Direct Vent- 4DT-WT

SELKIRK 4DT-WT Round Wall Thimble- Black- 4" x 6 5/8" Direct Vent. Direct Temp.

Two-piece wall thimble easily slides together for installation on wall thicknesses of 4" to 7". Serves a dual purpose as both a heat shield and a firestop.

Direct-Temp system features stainless steel inner and heavy duty galvanized steel outer walls. Heavy duty centering brackets keep inner pipe centered and chamfered edges allow for easy slide-together assembly. The free-floating inner liner allows the pipe to expand and contract under high temperature, without creating gaps or stress points. The Lock Tab(r) is a unique design that allows for 360 rotation while securely locking the sections of pipe together with just a push of the tab.