Overview

This is our sound attenuator flexible duct 2" inside diameter 6" outside diameter insulated to R8 with 2 vapor barriers. They come in a box quantity of 6 - 12' lengths with our Twist-Fit connectors on each end.

Features

• There are two styles of supply duct: Sound Attenuator tubing, sold in (also 3ft lengths) 12' lengths and Aluminum Core tubing, sold in 25' lengths
• They are all available in R3.3, R4.2, R6 and R8 insulation (3ft duct only available in R3 and R4 right now)
• Both styles of tubing can be cut to length as needed
• The inner core layer of the tubing is either: Two-ply corrugated aluminum OR spun bound nylon
• The outer jacket for all is made of a two-ply reinforced reflective mylar; providing a vapor seal to prevent leakage and moisture migration and increases the insulation factor by reducing the radiant heat transfer
• A fiberglass blanket insulation then fills the void between the jacket and the core
• The R3.3 and R4 duct have one insulation layer and vapor barrier
• The R6 and R8 have two layers of insulation and a double vapor seal