(800)865-5931 Mon-Tues 8am-7pm, Wed-Thurs 8am-6pm CT (closed Fri July 3rd)
Free Shipping See Details
No Sales Tax See Details
Actual product may vary from photos.
The Protech 300186 has been discontinued.
Please call us for a suitable alternate product.

(800) 865-5931

Mon-Tues 8am-7pm, Wed-Thurs 8am-6pm CT (closed Fri July 3rd)

Protech's FansNSeal venting system delivers a quick and easy installation with an instant, firm, and positive seal. FasNSeal combines the FasNSeal fastening method with an innovative, built-in sealing system. There is no need to clean vent surfaces before applying sealants and no need for curing time. The heating unit can be started as soon as the installation is complete.


  • A welded butt seam is smooth inside and out, is vapor and water tight, and avoids application of sealants.
  • A built-in sealing system assures vapor and water tightness and avoids condensate "puddling" in the joints.
  • A built in fastening system makes installation a breeze.

In 2002 Alpine Home Air Products became the first company to sell heating, air conditioning and indoor air-quality products online. We have proudly served hundreds of thousands of customers, helping them save time and money by buying their products direct.