Corey Breed, Vent Cap Inventor, is applying the new patent pending Duct Ninja;
Duct Ninja™
Corey Breed, Vent Cap Inventor, is applying the new patent pending Duct Ninja;

Duct Ninja™

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 real feedback from experienced home performance pros. What’s New In stock & ready to ship Rigid frame setup for better sealing and less fiddling Full-size Ninja Skin™ sheet with generous overlap Poles sold separately — use your own or add one at checkout Why You’ll Love It Seal from the floor — fewer ladder trips, faster...
$ 750.00
$ 750.00
Description
Description
x

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 real feedback from experienced home performance pros.

What’s New

  • In stock & ready to ship
  • Rigid frame setup for better sealing and less fiddling
  • Full-size Ninja Skin™ sheet with generous overlap
  • Poles sold separately — use your own or add one at checkout

Why You’ll Love It

  • Seal from the floor — fewer ladder trips, faster workflow
  • Reusable — stop burning time and money on disposable tape
  • Faster setup & teardown — fewer parts, less fuss
  • Cleaner testing — no residue, no trash
  • Lightweight & durable — built for daily field use
  • Works with most standard painter’s extension poles

Field Results (from real testers)

Maria West — Owner, Blower Door Queen (FL)

“The new cloth works 100 times better than the original. We don’t even use the clips anymore.”

“We’ve run about 10 tests since the update and everything works great. The solid bars are definitely the way to go.”

Brett White — Southern Valley Services (AL)

“The new setup worked great. It was significantly less leakage than tape.”

“It sucked right up to the return grille.”

Perfect For

  • Home performance pros
  • HVAC testing crews
  • Energy auditors
  • Total leakage testing workflows (DLT / TLT)

Important: The Duct Ninja™ performs best on systems without large, open breaches.  It is designed for depressurization, not pressurization. It performs by drawing the unique "space age" fabric into the return air grill.

What’s Included

  • Duct Ninja™ frame (current production configuration)
  • Full-size Ninja Skin™ sheet - So tough it's sick.
  • Central support beam with flange
  • Assembly & setup video access

Poles sold separately — use your own or add one at checkout.

Upgrade Protection (No “Version Regret”)

The Duct Ninja™ has improved quickly because pros have been willing to use it and give honest feedback. If you purchase at full price, you’re protected:

Full-price purchases include free update parts for up to two future revisions (when updates materially improve performance or durability).

Note: update parts provided as needed; this does not include optional accessories or consumables.

Order Today

Stop taping. Start testing smarter. If you’re ready to move faster, climb less, and eliminate tape from your duct tests, the Duct Ninja™ is ready to work.

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Shipping & Return
Shipping & Return
x

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

Field Results from Real Testers

Maria West — Owner, Blower Door Queen (FL)

“The new cloth works 100 times better than the original. We don’t even use the clips anymore.”

“We’ve run about 10 tests since the update and everything works great. The solid bars are definitely the way to go.”

Brett White — Southern Valley Services (AL)

“The new setup worked great. It was significantly less leakage than tape.”

“It sucked right up to the return grille.”

Watch First:

First Demo Video (Original Concept) Intro & Concept Overview = 0:00
Skip the Taping Portion → Go Straight Into Action Jump Ahead ≈ 1:21
Unboxing & Setup (Current Version) Full Setup Walkthrough
Ninja Placed with Fan Already Running Jump Ahead ≈ 6:17

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 real feedback from experienced home performance pros.

What’s New

  • In stock & ready to ship
  • Rigid frame setup for better sealing and less fiddling
  • Full-size Ninja Skin™ sheet with generous overlap
  • Poles sold separately — use your own or add one at checkout

Why You’ll Love It

  • Seal from the floor — fewer ladder trips, faster workflow
  • Reusable — stop burning time and money on disposable tape
  • Faster setup & teardown — fewer parts, less fuss
  • Cleaner testing — no residue, no trash
  • Lightweight & durable — built for daily field use
  • Works with most standard painter’s extension poles

Field Results (from real testers)

Maria West — Owner, Blower Door Queen (FL)

“The new cloth works 100 times better than the original. We don’t even use the clips anymore.”

“We’ve run about 10 tests since the update and everything works great. The solid bars are definitely the way to go.”

Brett White — Southern Valley Services (AL)

“The new setup worked great. It was significantly less leakage than tape.”

“It sucked right up to the return grille.”

Perfect For

  • Home performance pros
  • HVAC testing crews
  • Energy auditors
  • Total leakage testing workflows (DLT / TLT)

Important: The Duct Ninja™ performs best on systems without large, open breaches.  It is designed for depressurization, not pressurization. It performs by drawing the unique "space age" fabric into the return air grill.

What’s Included

  • Duct Ninja™ frame (current production configuration)
  • Full-size Ninja Skin™ sheet - So tough it's sick.
  • Central support beam with flange
  • Assembly & setup video access

Poles sold separately — use your own or add one at checkout.

Upgrade Protection (No “Version Regret”)

The Duct Ninja™ has improved quickly because pros have been willing to use it and give honest feedback. If you purchase at full price, you’re protected:

Full-price purchases include free update parts for up to two future revisions (when updates materially improve performance or durability).

Note: update parts provided as needed; this does not include optional accessories or consumables.

Order Today

Stop taping. Start testing smarter. If you’re ready to move faster, climb less, and eliminate tape from your duct tests, the Duct Ninja™ is ready to work.

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