Metalbest 5DT-R4 5" Inner Diameter - Direct-Temp Direct Vent Pipe - Double Wall - 5" to 4" Reducer Galvanized Vent Pipe Dire

Metalbest 5DT-R4 5" Inner Diameter - Direct-Temp Direct Vent Pipe - Double Wall - 5" to 4" Reducer 5" x 8" to 4" x 6-5/8" Direct Vent Reducer from Direct-TempMetalbest's new Direct-Temp direct vent reducer allows you to adapt 5 x 8” Direct-Temp pipe diameter to the 4 x 6-5/8” pipe diameter for vertical run applications when permitted by appliance manufacturer.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 LockTab(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.Features:Siliconozed fiberglass sealLockTab securityPipe rotates easily to align system componentsNo sealant requiredHigh efficiency performanceConnection Specifications:Joint/Connection Overlap: 1-5/8"Joint/Connection Type: Twist-Lock standard on all diametersMaterial Specifications:Outer Wall: Heavy duty galvanized steelInner Wall: 304 Stainless Steel Increaser/Reducer Galvanized