RAM (10) Insulation Removal Vacuum Bag - Super Heavy Duty Tear-Proof 6 FT X 4 FT - Easy-Fill SPOUT & Lowest DUST Filter - Contractors #1 Choice - EST 450 LBS / 75 CF PRO-450 (3.5 oz Strength)

Yes, these are indeed tough and are built well. The stitching is tight and the bags are all uniform. The material is very similar to heavy-duty landscape cloth used to inhibit weed growth. The size is such that I found I could roll and drag a completely fiberglass-filled bag into a dumpster. Abrasion resistance is very good but sharp objects (rocks, metal corners) can cut through so be wary of that during handling. I'd certainly buy these again.

Heavy when filled. Did nit fill at max potential. Will rip at the seams if you pull to adjust while trying to move. Recommend being placed on trailer while in use.

We haven't opened this particular box but we've used these in the past and they've been the best bags we can find so far. Don't bust open or rip easily.

They're larger and more durable all the other bags I've used. For only a couple more bucks a bag I can save hours of labor to clean up the mess other bags cause when they tear.

We use these bags for wood chip and dust collection on the end of a simple 3 hp dust collector. We are collecting pretty coarse chips coming out of a large wood planer. These are the strongest bags we have used yet!

I bought a box of these because I thought I was going to have to vacuum out a ton of cellulose in order to keep a remodeling project on schedule. Then the sprayfoam guy showed up early and used similar but lighter-weight bags to vacuum out the roof with his commercial cellulose vacuum. Every one of those other bags ripped while being loaded into a truck. I gave the sub some of my black bags and, although they are the same shape and vendor, the black bags didnt rip at all. If you want to avoid dropping a couple of hundred pounds of cellulose on your client's driveway, spend a few bucks more and buy these black bags. Highly recommended!

well made, thick and tear proof

Great bags. I work in the wildlife industry and we regularly do full attic insulation removals. I won’t buy another brand since finding the ram brand bags. Worth the money.