ALL CATEGORIES

SHOP BY INDUSTRY

EXCLUSIVE BRANDS

NEW PRODUCTS

EXPLORE SOLUTIONS

CATALOG

DEALS

About Us

Careers

News & Press

Investor Relations

Distribution Centers

Help Center

My Account

My Orders

Track My Order

Shipping & Returns

Apply For Credit

International Sales

Sales Tax Info

W-9 Form

Catalog

Product Recall / Safety Info

Floor Care Machine Self-Service

Customer Support

Extended Service Plan

Limited Warranty Information

Affiliate Program

Government Sales

Resellers

Become A Supplier

Safety Services

Subject Matter Experts

Territory Sales Manager

Accessibility Options

eProcurement

Services

Inventory Clearance

Free Shipping

New Products

Knowledge Center

Industrial How-Tos

More Ways To Shop

The QuietCool R-40 Winterized Insert is great for areas that get really cold during the winter. This is installed during the months that the QuietCool is not used to increase the R Insulation Value of the damper box to R-45. This WI-1436 is used for a QuietCool CL-6400 or QuietCool ES-6400. Please Note this product cannot be shipped to Hawaii. Made In The USA.

QuietCool R-40 Winterized Insert For 6400 Series, 14&quot;L x 36&quot;W x 3&quot;H

r-40-winterized-insert-for-6400-series-14-l-x-36-w-x-3-h

Customer Also Viewed

Save 15% Off

on all Auto-Reorders

<a href="/knowledge-center">Knowledge Center</a>

<a href="/contactUs">Customer Support</a>

<a href="/account/browse-history">Browse History</a>