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SH RB21

Return Riser Box 21" Wide X 28" Deep X 6" High
    Stocked across our regional branch network — sign in for live availability.
    Competitive contractor pricing — sign in to see your price.
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    WARNING
    Cancer and Reproductive Harm. www.P65Warnings.ca.gov

    Frequently Bought Together

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    80% 2 Stage 100K Upflow/Horiz Up to 5 Ton Vari SPD 21W Eco Com

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    RUDP UETST800SYS

    Econet Smart Thermostat

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    4 Inch Flue Adapter Kit

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    36X48X3 Plastic A/C Condenser Pad

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    SH 21-RAB

    Return Air Filter Box 21" Wide X 17.5" High X 28" Deep

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    RUUD R801T1005A21UHSNAS

    80% Single Stage 100K Upflow/Horiz Up to 5 Ton 21W Non Com

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    DIV QSMS1202

    12" High Dual Fan Mini Split Stand Wide 400 lb Capacity

    RUUD R962V1005A21M4SCAP image

    RUUD R962V1005A21M4SCAP

    96% Two Stage 98K Multi Pos Up to 5 Ton Vari SPD 21W Eco Com

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    RUUD RCFY4821STANMC

    A2L 4 Ton R454B Multi Position Cased Coil Stnd Eff 21" Wide w/A2L Sensor TXV

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    RUUD RD18AY48AJVCA

    A2L 4 Ton 18 SEER2 208/230-1 R454B Inverter Var Spd Universal Ht Pump Econet

    RUUD R962V0855A21M4SCAP image

    RUUD R962V0855A21M4SCAP

    96% Two Stage 84K Multi Pos Up to 5 Ton Vari SPD 21W Eco Com

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    RUUD RD18AY36AJVCA

    A2L 3 Ton 18 SEER2 208/230-1 R454B Inverter Var Spd Universal Ht Pump Econet