SHL522 – HIGH TEMPERATURE LIMIT SWITCH (7″, L160°)
Supco SHL522 high limit switch, 7-inch insertion, opens at 160°F, closes at 140°F. Auto reset. Crosses to Goodman B1370908/B13709-08. Direct Goodman replacement.
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Supco SHL522 high limit switch, 7-inch insertion, opens at 160°F, closes at 140°F. Auto reset. Crosses to Goodman B1370908/B13709-08. Direct Goodman replacement.

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.

20″ aluminum 4-blade condenser fan blade. 33° pitch, CW rotation, hubless (no hub). Replacement for HVAC condenser and heat pump units.

LG ABG042KAC scroll compressor, 4 ton, R-410A. Direct replacement for Copeland ZP42K5E and ZP40K6E series. Fits Carrier, Rheem, Goodman, and others.

York flame sensor replacement (S1-02527773700). Aftermarket direct fit with 4-inch probe and Kanthal rod. Fits York, Coleman, and Luxaire furnaces.
![MSHXLC - DUAL CHUCK (LONG [6], 1/4-5/16)](https://otp-hvac.com/wp-content/uploads/2024/11/MSHXLC_HEX_DRIVER-300x300.jpg)
Malco MSHXLC long-reach (6″) dual magnetic hex chuck driver. Reversible 1/4″ and 5/16″. Extra length reaches screws recessed in duct flanges and panels.

Sanhua TXVFE-3-410A-CHATLEFF expansion valve. R-410A, 3-ton capacity, 3/8″ inlet, 1/2″ outlet. Chatleff fittings on both sides. For residential AC systems.

16″ galvanized start collar for connecting round duct to a sheet metal or ductboard plenum. Crimped end for easy duct attachment. Standard residential HVAC ductwork fitting.

Three-pole 40A contactor with 120V coil (C340B/DP401203). For 3-phase AC and commercial HVAC applications. Silver cadmium oxide contacts by Supco.

Lennox 18G89 flame sensor for Lennox and Armstrong furnaces. OEM replacement with straight probe design. Also cross-references RS36453B001.