IMPERIAL 7-in x 300-in Polyester Insulated Flexible Duct R 6 Item #5181002 | Model #QTR4X32T8120SCEBJ4 60 uniform energy factor makes

60 uniform energy factor makes this one of the most efficient gas water heaters available

It is constructed of durable plastic for a strong and rust resistant connection

special heat resistant composition diaphragms

durable fiberglass-reinforced nylon body

• Infuses into system through standard ¼" service port using an HVAC Manifold

IMPERIAL 7-in x 300-in Polyester Insulated Flexible Duct R 6 Item #5181002 | Model #QTR4X32T8120SCEBJ4 60 uniform energy factor makesThis Imperial Insulated Flexible Duct is ideal for use with heating, ventilation, and air conditioning systems. Its 2 ply polyester laminated inner core is constructed with supportive, non corrosive coated wire. A blanket of fiberglass insulation surrounds the core which helps to reduce heat loss and condensation, and a silver metalized outer jacket with reinforced scrim surrounds the fiberglass insulation for durability. Because of its flexible