POWERTEC 70333 Dust Collector Bag, 19-5/8" x 31", 1 Micron Filter

Arrived in 2 days I think ... I just purchased a 2 hp Harbor Freight (5 micron) dust collector to replace my 1 hp Grizzly. I was concerned about the fit and how performance might be affected going from 5 microns to 1 micron filtering. Fit was fine. The bag seems much thicker than the standard HF bag. Good quality too. re: CFM / suction, I did a very unscientific test by seeing how effective an open, horizontal pipe would hold a package of sandpaper. With the 5 cfm bag, it would barely hold the package with 3 sheets. With the 1 micron it also barely held the same package of 3 sheets. Neither would hold 4 sheets and easily held 2 sheets. So, for me, not a lot of difference in suction / cfm. I was happy with that. How's that for hillbilly testing? ;-) See photos.

bonne dimension

Works great and keeps dust at a minimum in my shop.

I replaced the OEM dust bag on my Harbor Freight 2hp dust collector, and this was a perfect fit. I always thought the stock bag did an ok job, but this one blows it away. The stock bag would always let fine dust through, but this one never seems to have a cloud of dust around it. It definitely seems a high quality material, especially compared to the old bag. Suction is still good, and it was very easy to install. I’m very impressed with the performance.

I have hooked this bag directly to a 2" hose connected to my DeWalt planner. Works well, happy with my purchase.