Mcdaniel Metals PL21X23X36-R6 Plenum R6 26GA No Flange

Product Description

The MCDANIEL METALS PL21X23X36-R6 is a fabricated galvanized sheet metal supply plenum with R6 insulation, built without a flange, and sized at 21 inches x 23 inches x 36 inches. Constructed from 26-gauge galvanized steel, it weighs 26.1 pounds and is manufactured in the USA. This plenum transitions conditioned air from an air handler or furnace into the supply duct system and is installed by licensed HVAC technicians in residential and light commercial applications. The R6 insulation rating reduces heat gain and loss in unconditioned spaces such as attics and crawlspaces, helping maintain system efficiency.

This plenum is suited for new construction and replacement installations where a no-flange configuration is required. It is designed for use with forced-air heating and cooling systems and fits applications where the plenum connects directly to the air handler cabinet or furnace outlet. The 21 inches x 23 inches x 36 inches dimensions accommodate larger residential and light commercial unit openings. MCDANIEL METALS fabricates plenums to order, and accommodations for ductliner are available as noted by the manufacturer.

Key Features

• R6 insulation rating reduces thermal loss in unconditioned installation areas
• 26-gauge galvanized steel construction for corrosion resistance and structural rigidity
• No-flange design for direct cabinet or unit connections that do not require a flanged interface
• Fabricated to order ensuring consistent dimensional accuracy at 21 x 23 x 36 inches
• Manufactured in the USA from galvanized sheet metal

Compatibility

Designed as an OEM-style fabricated replacement or new-installation supply plenum for forced-air residential and light commercial HVAC systems requiring a 21 inches x 23 inches x 36 inches no-flange plenum with R6 insulation.

Installation Notes

Installation should be performed by a licensed HVAC technician. Power down the air handler or furnace and shut off any associated gas supply before beginning work. Seal all plenum joints with listed duct sealant or mastic and metal-backed tape in accordance with local mechanical codes and SMACNA standards. Do not compress or puncture the insulation layer during handling or fastening, as this reduces the effective R-value.

Technical Specifications

• R-Value: R6
• Gauge: 26 GA
• Width: 21 inches
• Depth: 23 inches
• Length: 36 inches
• Weight: 26.1 pounds
• Material: Galvanized Steel
• Flanged: No
• Insulated: Yes
• Color: Silver
• Country of Origin: USA
• Unit of Measure: EA

Standard Information

• Brand: MCDANIEL METALS
• Manufacturer Part Number: PL21X23X36-R6