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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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502040A Caleffi Minical Air Vent 1/2"Npt

$17.78 USD

In Stock

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NA553379 Caleffi Boiler Trim Kit 1 1/4"Swt Tank

$554.94 USD

Limited Stock Available

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502243A Caleffi High Capacity 1/2"Npt Air Vent

$37.69 USD

Limited Stock Available

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549566A Caleffi Hydraulic Separator 1" Press

$715.22 USD

Limited Stock Available

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549567A Caleffi Hydraulic Sep 1 1/4" Press

$905.46 USD

Limited Stock Available

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502015A Caleffi Minical 1/8"

$17.78 USD

Limited Stock Available

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NA553366 Caleffi Boiler Trim Kit 1"Press Tank

$545.40 USD

Limited Stock Available

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NA553369 Caleffi Boiler Trim Kit 1"Swt 30# Tank

$497.43 USD

Limited Stock Available

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NA553376 Caleffi Boiler Trim Kit 1 1/4"Press

$629.46 USD

Limited Stock Available

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535361HA Caleffi 1" Fnpt Pressure Reducing Vlv

$168.32 USD

Limited Stock Available

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533350HA Caleffi 3/4" Fnpt Compact Prv Prescal

$64.64 USD

Limited Stock Available

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535051A Caleffi 3/4"Npt Boiler Feed Autofill

$142.99 USD

Limited Stock Available

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Z55 Caleffi 24V Nc W/Es 3/4"Swt 7.5 Cv

$170.55 USD

Limited Stock Available

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521519A Caleffi 3Wtherm Mixing Valve 3/4"Swt

$223.43 USD

Limited Stock Available

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Z307537 Caleffi 3Wbody 3/4"Swt 7.5Cv No Lead

$99.67 USD

Limited Stock Available

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Z307433 Caleffi 3Wbody 1/2"Swt 3.5Cv No Lead

$83.60 USD

Limited Stock Available

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Heating Cooling Parts

2023 W Fullerton Ave

Chicago, IL 60647

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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.
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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