Flexible Technologies

4 in. x 25 ft. Flexible Air Duct R4.2

Part #FKMP25 | Item #794737 | Manufacturer Part #0537-0400-0001

Call for Pricing

How to get it:

No Store Selected

To see local availability for this item, please

Select a Store

Insulated
Reinforced Metalized vapor barrier
Polyester inner core for low to medium pressure systems
Velocity 5,000 fpm
Flame spread less than 25, smoke developed less than 50
Operating temperature -20° F to 250° F
R value: 4.2 using ASTM C-518 (1991) at installed wall thickness on flat insulation only
UL 181 listed class I air duct
Complies with NFPA standards 90A and 90B
Meets FHA standards

ASTM Specifications: ASTM C518

Diameter: 4 in

Duct Shape: Round

Length: 25 ft

Material: Fiberglass, Plastic, Steel

Material Type: Polyester

Maximum Airflow: 5000

R value: R4.2

UL Listed: UL 181