The Large Pressure Pan is the ultimate duct leakage diagnostic tool, designed for professionals conducting Blower Door tests and identifying exterior air leaks in forced air duct systems. This 22″ x 22″ pan is perfect for larger registers, providing a secure and efficient way...

The DM32X Umbilical for Retrotec 300/400 Series Fans is designed to provide seamless connectivity between your fan and DM32X digital manometer. This umbilical includes precision pressure tubes and Ethernet connections to ensure accurate pressure readings and efficient testing. Features: Compatible with Retrotec 300/400 Series...

Limited Beta Batch · Steep Discount Vent Seal Pro™ – Beta Tape (8" Clear Roll) View Product & Purchase (VIDEO IN "DESCRIPTION" BELOW)  Wide, clear sealing tape designed specifically for duct leakage and blower door testing — from the same guy who brought you...

A Fan Reimagined The Retrotec 7100 Blower Door System redefines airtightness testing with its lightweight design and powerful airflow. Weighing only 23 lbs (10.4 kg), it is over 30% lighter than its predecessors while offering greater performance than the Model 5000. Key Features: 30%...

Retrotec 5100 Blower Door System (Without Gauge) Upgrade Your Testing Power—Gauge-Free Flexibility The Retrotec 5100 Blower Door System delivers top-tier performance for residential and light commercial air leakage testing. Designed for professionals who already own a compatible digital gauge, this system lets you expand...

Replacement Plastic J Hooks – Vent Cap OEM Don’t toss your Vent Caps—restore them. These are the original factory J Hooks that come with every Vent Cap System. They're lightweight and are molded in plastic from our proprietary tooling overseas.  Full Disclosure:  I pull...

Keep the smoke flowing and the diagnostics going. With these genuine AT100 AirTracer replacement cartridges, you’ll never miss a beat during your testing sessions. Designed exclusively for the Retrotec AirTracer AT100, each cartridge delivers dense, glycol-based smoke that fills the space fast—and lingers long...

Duct Ninja™ — Field-Tested. Proven. Now Shipping. The patent pending Duct Ninja™ is the faster, cleaner, reusable way to seal return grilles for duct leakage testing under depressurization—without ladders, without tape, and without waste. This is the version that’s working in the field—refined through...