These purpose designed return air filter boxes are designed to fit the Midea MIH range.
Plenums are supplied with a filter installation frame that screws to the back of the unit. This allows removal of the air filter by side withdrawal.
An air filter is supplied with this plenum box to replace the one supplied with the air conditioner.
Use the drop down velocity calculator to select the number and size of spigots required for your air conditioning installation
