Gulf Coast Research Lab greenhouse filter for saltwater filtration and reclamation. PBF-3 from AST is great for mitigating loads with high solids due to its aggressive motorized backwash.
Gulf Coast Research Lab Trout Greenhouse 2
Education and Research, Propeller Bead Filter![](https://astfilters.com/aquatic-systems/wp-content/uploads/sites/3/2016/01/gulf-coast-research-lab-bead-water-filters-2.jpg)