MADDOX Combustion Leak Detector for $27.99

Code 100000000 · Exp. 7/2/2026

Inside Track Club members can buy the MADDOX Combustion Leak Detector (Item 64814) for $27.99, valid through July 2, 2026.

Save on Harbor Freight’s customer favorites with our super coupons. Search our Harbor Freight coupons for deals on Harbor Freight’s generators, air compressors, power tools, and more.

This is an Inside Track Club deal – valid ONLY for members. Our Inside Track Club members get access to Exclusive Member Deals on new items monthly. Look for the blue tags in-store or view online. When you're ready to join, click here to join Inside Track Club.

Coupons for: