Mcdaniel Metals SP3-48T Supply Plenum R-6 Insulated

Product Description

The MCDANIEL METALS SP3-48T is a factory-insulated sheet metal supply plenum designed for central air and forced-air heating system installations. Built from galvanized steel with a 1.5-inch fiberglass liner rated R-6, this plenum connects to the air handler or furnace supply outlet and distributes conditioned air to the duct system. Measuring 19.5 inches by 19 inches by 48 inches and weighing 32 pounds, it is sized for larger residential and light-commercial applications. HVAC technicians and sheet metal contractors install this unit as part of a new system installation or a duct replacement project requiring a rigid, insulated plenum box.

This supply plenum is suited for forced-air heating and cooling systems where a rigid, insulated plenum transition is required at the air handler or furnace supply. The galvanized steel construction provides structural integrity in attic, basement, and mechanical room installations. The integral R-6 fiberglass liner controls condensation and reduces heat gain or loss along the supply side of the system, making it appropriate for both heating and cooling climates. It is manufactured in the USA and is intended for professional installation by qualified HVAC contractors or sheet metal mechanics.

Key Features

• Galvanized steel construction resists corrosion in typical mechanical room environments
• 1.5-inch fiberglass interior liner provides R-6 thermal insulation
• Large 19.5 inch by 19 inch by 48 inch profile suits high-capacity residential and light-commercial air handlers
• Manufactured in the USA
• Factory-assembled rigid plenum reduces field fabrication time

Compatibility

Designed as an OEM-style supply plenum for forced-air HVAC systems requiring a rigid insulated plenum box at the air handler or furnace supply outlet. Confirm equipment supply opening dimensions before installation.

Installation Notes

Installation should be performed by a licensed HVAC contractor or sheet metal mechanic in accordance with applicable mechanical codes and SMACNA duct construction standards. Shut down and lock out the air handler or furnace before connecting the plenum to any equipment. Seal all joints with listed duct sealant or mastic and approved tape to meet energy code requirements. Note that this product is subject to California Proposition 65 chemical exposure warnings.

Technical Specifications

• Length: 19.5 inches
• Width: 19 inches
• Height: 48 inches
• Weight: 32 pounds
• Insulation Thickness: 1.5 inches
• Insulation Rating: R-6
• Composition: Galvanized Steel, Fiberglass
• Color: Silver
• Insulated: Yes
• Country of Origin: USA
• Prop 65: Yes

Standard Information

• Brand: MCDANIEL METALS
• Manufacturer Part Number: SP3-48T