Metalbest 4Dt-Vpss 4 Inner Diameter - Galvanized

4 x 6-5/8 Direct Vent Spark Arrestor Cap from Direct-Temp This screen attaches inside 4DT-DCC to reduce sparks and to prevent animals birds and debris from entering as well as preventing hot items from leaving the chimney. It is easily removed for cleaning adding convenience. 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 degrees 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 Use with 4DT-DCC Ends the vent system Easily removed for cleaning Image shows screen installed in 4DT-DCC No sealant required 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