Airboot / RETURN Plenum Box (for Panasonic S-70PE3R / S-100PE3R) — 275×1035×30 / 2×Ø350 Internal Insulation

Description
The return airboot (plenum box), model PSPB275/350, measures 275×1035×30 / 2×Ø350 and is internally lined with 5mm insulation. It is designed for Panasonic S-70PE3R and S-100PE3R ducted units, serving as a static pressure chamber that transitions the unit’s return opening to the duct system. By balancing airflow and stabilizing static pressure, it reduces noise, minimizes condensation, and enhances system efficiency and comfort.

Applications

• Compatible with Panasonic S-70PE3R / S-100PE3R ducted units

• Return air distribution in residential, office, and retail ceiling systems

• HVAC return air connections in commercial and public buildings

• Ideal for projects requiring balanced airflow and quiet operation

Installation & Compatibility

• Rectangular inlet: 275×1035×30mm

• Round outlets: Ø350mm ×2

• Internal 5mm insulation layer for condensation prevention and thermal stability

• Matches Panasonic S-70PE3R / S-100PE3R return openings

• Connects directly to ductwork and return grilles

Specifications

• Type: Return airboot / plenum box

• Model: PSPB275/350

• Material: Galvanized steel with internal insulation

• Insulation thickness: 5mm

• Rectangular inlet: 275×1035×30mm

• Round outlets: Ø350mm ×2

• Compatible unit: Panasonic S-70PE3R / S-100PE3R ducted units

• Application: HVAC return air distribution and static pressure stabilization