Phat Filter 6" x 16" | 375 CFM | LED Our revolutionary new formula improves

Our revolutionary new formula improves upon the original: We have targeted and isolated crucial nutrients in various kelp species and stabilized the solution for maximum absorption

Safe to use around kids and pets

Total Nitrogen (N) 4

Agro-Lig is a granular humic acid (65%) from leonardite used to improve soil

Multiple drain positions for versatility in setups

Phat Filter 6" x 16" | 375 CFM | LED Our revolutionary new formula improves6" x 16" 375 CFM Product Details Phat Filters are packed full with the very best carbon on the market and we have the independent lab test numbers to prove it. How do we know? Simple math. Carbon Quantity x Carbon Quality = Filter Capacity QUANTITY: When we say Phat Filter carbon beds are 2" thick, they are in fact, 2" thick. The same is true when it comes to Phat Filter bed length size; the size we claim is in fact the actual size, not a rounded up