Insulation removal bags that hold up when they're full
Ultra-Bag started in 2014 because the bags on the market tore. We found better ones, tested them on real jobs, and now supply insulation contractors with vacuum bags, snake bags and trailer bags. Premium Black and Gen2 woven bags carry a free replacement guarantee.
Five bags for five ways of removing insulation
| Vacuum bagPremium Black | Vacuum bagGen2 Woven | Vacuum bagQuality White | Batt removalSnake Bag | Bulk loadsTrailer Bag | |
|---|---|---|---|---|---|
| Size | 4′ × 6′ | 4′ × 6′ | 4′ × 6′ | 4′ × 12′ | 12′ × 7.5′ × 5′ |
| Capacity | About 75 cu ft | About 85 cu ft | About 75 cu ft | Hangs from the attic hatch | About 475 cu ft |
| Built for | Heavy, everyday vacuum work | Wet or sharp material, squared-off loads | Everyday vacuum work with good airflow | Feeding batts out of an attic | Filling a trailer or dump trailer |
| Free replacement guarantee | Yes | Yes | — | — | — |
Gen2 Woven
A cross-woven bag with squared edges that holds a little more than our other 4′ × 6′ bags, and doesn't absorb water. A good choice for wet insulation and rain-exposed jobs.
| Size | 4′ × 6′, squared edges |
|---|---|
| Capacity | About 85 cubic feet |
| Construction | Cross-woven fabric |
| Neck | 11 in. opening, fits all major insulation removal vacuums |
| Water | Does not absorb water |
| Guarantee | Free replacement guarantee |
Quality White
A strong everyday bag that breathes better than the black bag, letting air through so your vacuum keeps its performance while the bag fills.
| Size | 4′ × 6′ |
|---|---|
| Capacity | About 75 cubic feet |
| Airflow | Breathes better than Premium Black |
Snake Bag
Hangs from the attic hatch. Crews feed batts into it as they pull them out, instead of stuffing dozens of trash bags. The dark color keeps the contents out of the homeowner's view.
| Size | 4′ × 12′ |
|---|---|
| Use | Hangs from the attic hatch and takes batts as they come out |
| Color | Dark |
Trailer Bag
A bulk bag that lines a trailer or dump trailer, for pulling large volumes of insulation out of a job. Four hose ports let air move freely while you fill it.
| Size | 12′ × 7.5′ × 5′ |
|---|---|
| Capacity | About 475 cubic feet |
| Ports | Four hose connection tubes, so airflow isn't restricted |
| Fits | 10′ to 14′ trailer beds, and 2 to 4 yard single or tandem dump trailers |
| Packaging | 2 bags per box |
Which bag for which job
- Daily vacuum work. Premium Black is the one to pick if you want the strongest bag and the guarantee.
- Wet insulation or rain. Gen2 woven doesn't absorb water and holds the most of the 4′ × 6′ bags.
- Airflow first. Quality White breathes better, which helps vacuum performance.
- Batts. A snake bag saves trips and trash bags on batt removal.
- Bulk blown-in. A trailer bag turns a trailer into a container for a full load.
Dress the crew, too
Insulation fibers and attic dust get on everything. Crews typically wear a hooded coverall with boots, gloves and a respirator suited to the fiber they're removing. See our insulation guide, or go straight to the SMS, polypropylene and Vent coveralls.
Insulation removal bag FAQ
Will these bags fit my insulation removal vacuum?
The Premium Black and Gen2 woven bags have an 11 in. neck that fits all major insulation removal vacuums. If you run something unusual, tell us the make and model and we'll confirm.
Which bags have the free replacement guarantee?
Premium Black and Gen2 woven. The Quality White, snake and trailer bags don't carry it. If a bag fails on the job, call 888-425-1099 or email orders@ultra-bag.com.
What's the difference between Premium Black and Gen2?
Premium Black is our strongest bag, with safety-chain and overedge stitching. Gen2 is a cross-woven bag with squared edges that holds more and doesn't absorb water. Both carry the guarantee.
How much insulation does one bag hold?
Capacity is about 75 cubic feet for Premium Black and Quality White, and about 85 for Gen2. How much insulation that is depends on the material and how tightly it packs.
What is a snake bag for?
Batt removal. It hangs from the attic hatch so the crew can feed batts straight into it, instead of stuffing trash bags and carrying them out.
How do I buy?
Call or email us. We sell by the case and the pallet, ship fast, and can mix bags and coveralls on one order.
Bags on the shelf, ready to ship.
Ask for a quote. Fast shipping by the case or pallet.


