These purpose designed return air filter boxes are designed to fit the Toshiba RAS M16U2DVG-E multi split concealed ducted unit.
Plenums are supplied with a filter installation frame that screws to the back of the unit. This allows removal of the filter by both side withdrawal or by quick release of the plenum box. A slide rail accommodates a washable un-pleated air filter available as an optional cost.
Note: No air filter is supplied with this model.