Lambro 622 Aluminum Pipe, 4" x 60" BackToCampus Use in cracks less than

Use in cracks less than 1/8 inch wide or in expansion joints

Chimney Vent Type : Type HT

Resin-backed stone

Closed end works in places deep sockets will not reach

Bleed screw for manual on/off operation

Lambro 622 Aluminum Pipe, 4" x 60" BackToCampus Use in cracks less thanSmooth aluminum ducting snap lock. Major city building codes require that any dryer ducting. Drywalled wall must be a minimum of 5' to eliminate seams. Must be smooth in texture no ribbing. 4" x 60" Smooth aluminum ducting snap lock Major city building codes require that any dryer ducting Drywalled wall must be a minimum of 5' to eliminate seams Must be smooth in texture no ribbing.