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  3. Return Air Boxes - Metal

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    1800mm Perimeter 5mm Ins Box 1800 Max 450 Deep

    1800mm Perimeter 5mm Ins Box 1800 Max 450 Deep

    RB1800+
    1800mm Perimeter Ins Box 300 Max Deep

    1800mm Perimeter Ins Box 300 Max Deep

    RB1800+SHORT
    1800mm Perimeter Plain Box 1800 Max 450 Deep

    1800mm Perimeter Plain Box 1800 Max 450 Deep

    RB1800
    1800mm Perimeter Plain Box Max 300 Deep

    1800mm Perimeter Plain Box Max 300 Deep

    RB1800SHORT
    2300mm Perimeter 5mm Ins Box 1801-2300

    2300mm Perimeter 5mm Ins Box 1801-2300

    RB2300+
    2300mm Perimeter Ins Box 1801-2300 Max 300 Deep

    2300mm Perimeter Ins Box 1801-2300 Max 300 Deep

    RB2300+SHORT
    2300mm Perimeter Plain Box 1801-2300 Max 300 Deep

    2300mm Perimeter Plain Box 1801-2300 Max 300 Deep

    RB2300SHORT
    2300mm Perimeter Plain Box 1801-2300 Max 450 Deep

    2300mm Perimeter Plain Box 1801-2300 Max 450 Deep

    RB2300
    252.550 Return Air Box 5mm Ins suit EG2412FACE

    252.550 Return Air Box 5mm Ins suit EG2412FACE

    RB1/4TBAR+
    252.550 Return Air Box Unassembled 5mm Ins

    252.550 Return Air Box Unassembled 5mm Ins

    RBUN1/4TBAR+
    2800mm Perimeter 5mm Ins Box 2301-2800 450 Deep

    2800mm Perimeter 5mm Ins Box 2301-2800 450 Deep

    RB2800+
    2800mm Perimeter Ins Box 2301-2800 Max 300 Deep

    2800mm Perimeter Ins Box 2301-2800 Max 300 Deep

    RB2800+SHORT
    2800mm Perimeter Plain Box 2301-2800 450 Deep

    2800mm Perimeter Plain Box 2301-2800 450 Deep

    RB2800
    2800mm Perimeter Plain Box 2301-2800 Max 300 Deep

    2800mm Perimeter Plain Box 2301-2800 Max 300 Deep

    RB2800SHORT
    3200mm Perimeter 5mm Ins Box 2801-3200 450 Deep

    3200mm Perimeter 5mm Ins Box 2801-3200 450 Deep

    RB3200+
    3200mm Perimeter Ins Box 2801-3200 Max 300 Deep

    3200mm Perimeter Ins Box 2801-3200 Max 300 Deep

    RB3200+SHORT
    3200mm Perimeter Plain Box 2801-3200 450 Deep

    3200mm Perimeter Plain Box 2801-3200 450 Deep

    RB3200
    3200mm Perimeter Plain Box 2801-3200 Max 300 Deep

    3200mm Perimeter Plain Box 2801-3200 Max 300 Deep

    RB3200SHORT
    350.600 Return Air Box 5mm Ins 450 Deep

    350.600 Return Air Box 5mm Ins 450 Deep

    RB1424+
    350.600 Return Air Box Unassembled 5mm Ins

    350.600 Return Air Box Unassembled 5mm Ins

    RBUN1424+
    3600mm Perimeter 5mm Ins Box 3201-3600 450 Deep

    3600mm Perimeter 5mm Ins Box 3201-3600 450 Deep

    RB3600+
    3600mm Perimeter Ins Box 3201-3600 Max 300 Deep

    3600mm Perimeter Ins Box 3201-3600 Max 300 Deep

    RB3600+SHORT
    3600mm Perimeter Plain Box 3201-3600 450 Deep

    3600mm Perimeter Plain Box 3201-3600 450 Deep

    RB3600
    3600mm Perimeter Plain Box 3201-3600 Max 300 Deep

    3600mm Perimeter Plain Box 3201-3600 Max 300 Deep

    RB3600SHORT
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