Air plenum boxes are used to connect your Midea concealed ducted air conditioner to both flexible and rigid ducts.
Minimum quantity for "MIH 15-45 T2N18 Supply Air Plenum - End discharge" is 1.
Minimum quantity for "MIH 56-71 T2N18 Supply Air Plenum - End discharge" is 1.
Minimum quantity for "Midea MIH15-45 T2N18 MIH Return Filter Plenum" is 1.