Airboot / RETURN Plenum Box (for Gree GUD71PHS/B-S) — 270×910×30 / 1×Ø350 Internal Insulation

Description
The return airboot (plenum box), model GRGUDR71, measures 270×910×30 / 1×Ø350 and is internally lined with 5mm insulation. It is designed for Gree GUD71PHS/B-S (7.1kW) ducted units, functioning as a static pressure chamber that balances airflow and stabilizes static pressure. This minimizes turbulence and noise, reduces condensation risk, and improves overall system efficiency and comfort.

Applications

• Compatible with Gree GUD71PHS/B-S (7.1kW) ducted units

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

• HVAC return air connections in commercial and public buildings

• Ideal for projects requiring quiet operation and balanced airflow

Installation & Compatibility

• Rectangular inlet: 270×910×30mm

• Round outlet: Ø350mm ×1

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

• Matches Gree GUD71PHS/B-S return opening

• Connects directly to ductwork and return grilles

Specifications

• Type: Return airboot / plenum box

• Model: GRGUDR71

• Material: Galvanized steel with internal insulation

• Insulation thickness: 5mm

• Rectangular inlet: 270×910×30mm

• Round outlet: Ø350mm ×1

• Compatible unit: Gree GUD71PHS/B-S (7.1kW)

• Application: HVAC return air distribution and static pressure stabilization