Most DE filters require 1 lb of D.E. (diatomaceous earth) for every 10 square feet of filter area. For Example, if you have a 48 square foot DE filter than you would typically need 4.8 lbs of D.E. The D.E. Scoop helps you quickly measure the correct amount of D.E. for your filter. (Make sure to verify the amount of DE your filter requires)
