This is the Original BAYOXIDE® E33 HC High Capacity Granules. The same as you are used to. Specially processed by Kolar Filtration for reduced fines and ultra-high purity. Kolar Filtration is the exclusive distributor for Lanxess BAYOXIDE® E33 HC for the aquatics industry in North America, so you can be sure you are getting the real, high quality product you need. High Capacity BAYOXIDE® E33 HC has nearly 4 times the phosphate removal capacity by volume in saltwater as regular GFO, is denser, so it will fluidize well in a reactor with reduced channeling, and is more mechanically stable for fewer fines after rinsing.