Item Codes:
RAPLFR17.5X28.5X24 Return Air Plenum 17.5 x28.5 X24 W/ 4 RACK 0 EA Customer Pricing
RAPLFR18.5X21.125X18 Return Air Plenum18.5inx21.125inX18inW/RACK Lined R8 0 EA Customer Pricing
RAPLFR21X28.5X24 Return Air Plenum 21 x28.5 X24 W/ 4 RACK 0 EA Customer Pricing
RAPLFR23.5X21.125X18 Return Air Plenum23.5inx21.125inX18inW/RACK R8