"The Original Whole House Fan Website Online - Since 2001".
Free Expert Advice: 1.888.229.5757
Direct: 1-661-775-5979

Winterization Kit for CL/ES-4700 & 5400

All purchases backed by our ironclad money-back guarantee
Winterization Kit
MSRP: $ 155.00
Sale Price: $ 145.00
You Save $ 10.00

Quantity:


No Risk Guarantee     | All Fans Ship Free! Same Business Day!

Use this kit to winterize your QuietCool CL-4700 or ES-4700 or CL5400, ES5400 whole house fan.  The insert has an R-40 insulation value and goes behind the included removable grille.