Product Catalog
Current Promotions
AHRI Matchup
Repair Part Finder
My Learning
Service Dashboard
PRODUCT
Product Catalog
Current Promotions
Clearance Center
TOP TOOLS
AHRI Matchup
Cross Reference
Repair Part Finder
Sales Tools
Lead and Customer Management
Sales Dashboard
Proposal Builder
Build a Proposal
Financing
US Consumer Finance
Canadian Consumer Finance
Commercial Leasing
Survey
ACCA Capacity Calculator
Load Calculator
Promotions
Consumer Promotions
Utility Rebates
Tax Credits
Sales Person Spifs
Learning
BuildASalesPerson
Master Selling
Advanced Master Selling
Operations Accountability
Commercial
Commercial Quick Quote
See all Sales Tools
Warranty
RESOURCES
My Learning
Help
Learn Lennox
Why LennoxPros?
Awards
Retail
Build with Lennox
See all Learn Lennox
Lennox Stores
Promotions
About Lennox Stores
Learn About Products
Store Locations
Saturday Hours
Holiday Schedule
See all Lennox Stores
Lennox Learning Solutions
Financial Tools
US Consumer Finance
Canadian Consumer Finance
Commercial Leasing
See all Financial Tools
Marketing Tools
Advertising
Custom Ad Design Shop
Fill in the Blank Press Releases
Order Literature
WEB Connect SEO Website
Website Product API
Rip and Read Radio Scripts
Managing Marketing Dollars
Your Co-Op Account
Order a CAP Package
CAP Program
Social Media
Social Media Program
See all Marketing Tools
Premier Tools
Technical Tools
Technical
Error Code Lookup
ACCA Capacity Calculator
AutoCAD Templates
Guide Specs
Prodigy Update Firmware Files
Revit Templates
Superheat / Subcooling Calculator
Unit Controller Software
Repair Part Finder
See all Technical Tools
Alliance Tools
Preferred Vendor
Visual Search Tool
Document Library
Service Dashboard FT
Service Dashboard
News
Saved Carts
My Lists
My Account
Quick Order
Order History
Commercial Quick Quote
My Lists

Heat Exchanger Assembly

Cat # : 72K90

Model/Part # : R42730-004

This product is used in several different models.

Print

Save to List

Brand
Lennox
Catalog Number
72K90
Model/Part Number
R42730-004
Base Unit of Measure
Unit(S)
EAN / UPC
385275
Gross Weight
101 LB

Product Overview

Heat Exchanger Assembly, Found in OF23 Series

close lead model

Would you like to create a proposal for a new lead?

CREATE LEAD & PROPOSAL

Would you like to create a proposal for existing lead?

Credit Application

Credit Application modal close
Please select the application form language.
Español English

Please Sign In to Continue

HVAC Professional Registration
close

Home

Sales Tools

Service Tools

Where are you located?

Où êtes-vous localisé?

Where are you located?

We may use cookies to remember your answer. For more information, see our privacy policy Privacy | Lennox.

Nous pouvons utiliser des témoins de connexion (cookies) pour retenir votre réponse. Pour plus d'informations, consultez notre déclaration de confidentialité Privacy | Lennox.

close
Stock Availability

Set Zip/Postal Code
close
Select your zip/postal code:

Set Zip/Postal Code

Zip/Postal Code

Check Nearby Stores

Out of Stock at Your Nearby Stores

Please check other cities’ zip/postal codes for same-day availability.

Find a nearby store using a city or zip/postal code above