Ductmate
Ductmate GRDRI849GA insulated round duct 22 ga 200°F
Insulated round duct with fiberglass lining handles 200°F air in 22-gauge steel
- Insulated construction with fiberglass reduces thermal loss
- 22 gauge steel provides structural rigidity
- 200 °F maximum temperature rating suits high-heat applications
- Sandwich-style design integrates insulation between steel layers
- Rectangular access door allows convenient duct inspection
Insulated round duct 22 ga 200°F
The Ductmate GRDRI849GA is a sandwich-style insulated round duct built from 22 ga steel with fiberglass insulation. It suits HVAC installers who need a straight run that resists heat up to 200 °F. The duct fits nominal diameters of 7, 8 and 9 inches and includes a rectangular access door measuring 8 by 4 inches.
Sustained thermal load
Fiberglass insulation and 22 ga steel maintain their integrity when the airstream stays at the rated 200 °F for long periods. The door uses two 2-inch mounting studs with knob latches so the seal does not relax under continuous cycling. No hinge means fewer moving parts that could fatigue over time.
Duct interface limits
The rough opening for the access door is fixed at 3 7/8 inches high, so any connected fitting must match that aperture. Insulation thickness is set by the sandwich construction and cannot be increased without changing the duct diameter. The steel observation port is sized to the door and does not accept a larger viewport.
Highlights
- Insulated construction with fiberglass reduces thermal loss
- 22 gauge steel provides structural rigidity
- 200 °F maximum temperature rating suits high-heat applications
- Sandwich-style design integrates insulation between steel layers
- Rectangular access door allows convenient duct inspection
Specifications
| Brand | DUCTMATE |
|---|
Questions about this item
Does the 22 ga steel and fiberglass insulation keep the duct surface cool enough for continuous 200°F airflow?
The 22 ga steel shell with fiberglass insulation is rated for a maximum temperature of 200 Degrees F, so it is designed to handle continuous operation at that level.
What existing ductwork diameter do I need to mount this GRDRI849GA access door?
It fits nominal duct diameters of 7 in, 8 in, or 9 in and requires a rough opening height of 3 7/8 in with two 2 in mounting studs.
Will the rectangular 8 in by 4 in door align with the curved wall of my older round duct?
Yes, the door is made for round ducts of 7 in, 8 in, or 9 in nominal diameter and the two mounting studs secure it to the curved surface.
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