Dry sift question

So I found a spot local that has screens for a great price. They take used frames and Remesh them with new mesh. I was curious what everyone's opinion would be on using these and what's the proper sizing to use with the numbers they offer.
I was thinking of grabbing
80lpi
125lpi
200lpi

What micron screen is best for Kief?
Since the material flows easier, we recommend a finer, 36-micron screen for bubble hash/kief if you're looking for super-quality product. A finer screen helps keep dusty particulate in the bag too. A 72-micron bag is an acceptable choice for kief and bubble hash too

i dont know what the lpi is.

What Micron is dry ice hash?
A 73-micron bag will produce golden high-quality kief (resin in powder form, which is used to make hash). A 160-micron bag will include slightly more plant material in the kief mix, but will still result in high-quality hash.

found this

I just bought a bunch of the material on Amazon. 3 yards of 50" wide material for under $20. They have mesh sizes from 100M/40T to 180M/72T

xtsho said:

I just bought a bunch of the material on Amazon. 3 yards of 50" wide material for under $20. They have mesh sizes from 100M/40T to 180M/72T

https://www.amazon.com/Printing-Equipment-Accessories-Painting-Polyester

Click to expand...

That site doesn't work for me

Gtjoker420 said:

That site doesn't work for me

Click to expand...

Oh crap sorry. I cut off the URL