4" x 6-5/8" Direct Vent Firestop Spacer from Direct-Temp This spacer is required when penetrating combustible materials with the direct vent system. Refer to the installation instructions for specific requirements. 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 360-¼ rotation while securely locking the sections of pipe together with just a push of the tab. Features: Siliconozed fiberglass seal LockTab security Pipe rotates easily to align system components No sealant required 12" x 12" Base 6.72" Hole Diameter 8.73" between opposite tabs High efficiency performanceConnection Specifications: Joint/Connection Overlap: 1-5/8" Joint/Connection Type: Twist-Lock standard on all diametersMaterial Specifications: Outer Wall: Heavy duty galvanized steel Inner Wall: 304 Stainless Steel
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Carcinogens: This product can expose you to chemicals including Lead, which is [are] known to the State of California to cause c