RABOX-2020 – RETURN AIR BOX – DUCT BOARD TOP
Insulated return air box, 20×20 opening with ductboard top. Connects return grilles to round ductwork — cut the top on-site to match your duct size. Galvanized steel.
Walk in. We test every part free at the counter. Open to homeowners, contractors, and multifamily — no account or minimum order.
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Ten departments, organized the way our counter is. Every category is on the shelf today.
Bring your old part. We'll diagnose it, find the replacement, and bench-test the new one at the counter before you leave — so you only make one trip.

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Insulated return air box, 20×20 opening with ductboard top. Connects return grilles to round ductwork — cut the top on-site to match your duct size. Galvanized steel.

55+5 MFD 440V dual run capacitor. Powers both the compressor and condenser fan motor. Budget-friendly TrueLine replacement for residential AC.

7.5 MFD 440V oval run capacitor. Powers a single motor — usually the condenser fan. Budget-friendly TrueLine replacement for any 7.5 MFD oval cap.

70+5 MFD 440V dual run capacitor. Powers both the compressor and condenser fan motor. Budget-friendly Supco replacement for residential AC.

Supco SLS160 auto reset micro limit switch, opens at 160°F, closes at 120°F. Compact design with angled terminals. Universal fit for furnaces and unit heaters.

Aftermarket inducer blower wheel for Carrier/Bryant furnaces. Replaces LA660002. Use when the wheel is cracked, chipped, or wobbling — no need to replace the whole motor.

Two-pole 40A contactor with 120V coil (C240B). Controls power to the compressor in commercial or specialty AC systems. For 120V control circuits only.

Rheem Endeavor Line RH2TY multipurpose air handler, 24,000 BTU/H nominal on R-454B with a factory TXV and non-communicating controls.

EZ Trap EZT-113 ClearTrap economy drain trap kit. 3/4″ transparent PVC with red watertight caps. See-through design lets you check for clogs without disassembly.

PF12121 pleated air filter. MERV 11, high-capacity 12″ x 12″ x 1″. Fits standard residential HVAC systems. Replace every 30-90 days for best airflow and filtration.