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Square uncoated steel access door with thumbscrew latches

Ductmate

Ductmate GRD66ULBI HVAC Control Access Door

SKU CH-2X9Y-W5KXY

Square access door with thumbscrew latches for ductwork, rated to 2,300 °F and built from 11-gauge steel with two 1½-inch mounting studs

  • ColorTransparent
  • 8-inch square access for quick duct inspection
  • 11-gauge steel construction withstands 2,300 °F service heat
  • Thumbscrew latches allow tool-free panel removal
  • Dual 1½-inch studs ensure secure flush mounting
  • Uncoated finish suits custom paint or wrap

Access door for ductwork

The Ductmate GRD66ULBI is an uncoated steel access door designed for HVAC ductwork. It provides a square opening that allows inspection or maintenance without removing sections of the duct. The door measures eight inches by eight inches and features a transparent observation port. Two thumbscrew latches secure the panel in place.

Suits technicians needing a basic inspection point

This door fits installations where a simple, fire-rated portal is required and the duct material can accept two mounting studs. It is not intended for systems that demand a hinged door, insulated panels or a specific fire rating. Buyers who need a larger opening or a different latch style should look at other configurations.

11-gauge steel with 300-degree temperature rating

The panel is constructed from 11-gauge steel and carries a maximum temperature rating of 300 degrees Fahrenheit. This specification determines whether the door can withstand the heat present in the duct system. Verify the operating temperature of the application before installation.

Highlights

  • 8-inch square access for quick duct inspection
  • 11-gauge steel construction withstands 2,300 °F service heat
  • Thumbscrew latches allow tool-free panel removal
  • Dual 1½-inch studs ensure secure flush mounting
  • Uncoated finish suits custom paint or wrap

Specifications

BrandDUCTMATE
ColorTransparent

Questions about this item

Which size door matches my 8-inch square duct opening?

The GRD66ULBI is an 8 in. by 8 in. square access door, so it fits a nominal 8-inch duct opening directly.

What does the 2,300 °F temperature rating mean when the door is installed?

The steel door and frame are rated to withstand continuous exposure up to 2,300 °F without warping or losing latch integrity.

How do the 11 ga steel and thumbscrew latches hold the door in place?

The 11-gauge steel frame provides rigid mounting, while the two thumbscrews engage the 1 1/2 in. studs to clamp the door airtight without tools.

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