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All appliances have a model number and a serial number tag located on the appliance. Generally they are available for the customer to find quickly. If you are unable to locate your tag, please see your original manual and or invoice from when you purchased the appliance.

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Heating and Cooling Parts HVAC

Heating and Cooling Parts HVAC

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Z300432 Caleffi 3 Way 1/2" Sweat 2.5 Cv 50 Psi

$64.64 USD

Limited Stock Available

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521509A Caleffi 3W Thermo Mixing Vlv 3/4"Swt

$189.17 USD

In Stock

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573503A Caleffi Backflow Preventer 3/4"Npt

$100.50 USD

Limited Stock Available

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573403A Caleffi Backflow Preventer 1/2"Npt

$94.86 USD

Limited Stock Available

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132552A Caleffi 3/4"Npt Vlv 2 7 Gpm

$216.37 USD

Limited Stock Available

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521506A Caleffi 3Wthermo Mixing Vlv 3/4"Press

$198.87 USD

Limited Stock Available

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Z151000 Caleffi Actuator W/End Sw Nc 24V

$121.39 USD

In Stock

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Z141000 Caleffi Actuator W/O End Switch No 24V

$118.18 USD

Limited Stock Available

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573009A Caleffi 1/2"Swt Bfp/Autofill 1/2"Npt

$185.46 USD

Limited Stock Available

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132432A Caleffi 1/2"Npt Vlv 0.5 1.75 Gpm

$199.91 USD

Limited Stock Available

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NA10998 Caleffi Gaskets Pack Of 10

$14.16 USD

Limited Stock Available

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551008A Caleffi Discal Air Separator 1 1/2"Npt

$275.00 USD

Limited Stock Available

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553542A Caleffi Auto Boiler Feed Vlv1/2"Npt

$125.41 USD

Limited Stock Available

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520516A Caleffi 3/4" Press Anglemix W/Gauge

$233.12 USD

Limited Stock Available

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519700A Caleffi Different Bypass 1 1/4"Npt

$241.46 USD

Limited Stock Available

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551054A Caleffi 2"Swt Discal Air Separator

$358.63 USD

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Heating Cooling Parts

2023 W Fullerton Ave

Chicago, IL 60647

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Mon-Fri: 8:00AM - 5:30PM

Sat: 9:30AM - 2:00PM

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©2026 HeatingCoolingParts dba of Midwest Appliance Parts Co. Inc
This site is not affiliated with or endorsed by any of the original manufacturers listed.
All brand names and logos are property of their respective owners and are used for identification purposes only.

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This product must be installed by a qualified/licensed contractor and set up with properly calibrated combustion test equipment. Failure to comply with this could result in substantial property damage, severe personal injury or death.

I acknowledge this product must be installed by a qualified licensed contractor

Oversize and Heavy Item Shipping Fee

The item you are purchasing is either packaged in a very large box or is very heavy. These items tend to require special shipping and handling.

Here's how it works:

Order the new part from our website and pay for this shipping fee.

For large items such as washer tubs, and baskets, we may use a freight company to deliver the item to you. We will contact you with more information on such orders especially to schedule a delivery with the freight company. Very rarely do we ship these items with UPS or Fedex because they have size limitations on what the drivers can carry. Please pay close attention to your tracking # provided at the time of shipping.

For HEAVY items such as compressors and motors, we may use a freight company to deliver the item to you. We will contact you with more information on such orders especially to schedule a delivery with the freight company. Very rarely do we ship these items with UPS or Fedex because they have weight limitations on what the drivers can carry. Please pay close attention to your tracking # provided at the time of shipping.

If you have any questions please reach our parts specialists at 773-278-1300.

Find The Right Part. Right Now!
Heating Cooling Parts

Refundable Deposit (Core Refund) Information

The item you are purchasing has a deposit due at checkout. This is completely refundable when you return your “core” or “old part” back to us.

Here's how it works:

Order the new part from our website.
Print out your order confirmation along with our Core Return Form located on our website. Please include both with your core return. Download Core Fee Return Form
Mail the item back to our Chicago branch at this address: Heating Cooling Parts 2023 W Fullerton Ave Chicago IL 60647.
We will refund your credit card for the amount shown on your original invoice.

If you have any questions please reach our parts specialists at 773-278-1300.

Find The Right Part. Right Now!
Heating Cooling Parts