Hydro-logic PreEvolution High Capacity Pre-Filter CO2 Generator The fourth ingredient in pH

The fourth ingredient in pH Perfect GMB is the highly-potent bud-potentiating nutrients themselves that feed your plants exactly what they need for fast

Excellent for use with heavier equipment like carbon filters or to hang multiple light fixtures

Up to 20 GM flow rates

4x8 Tray:  54

Hydro-logic PreEvolution High Capacity Pre-Filter CO2 Generator The fourth ingredient in pHEnsures your Evolution RO1000 runs more efficiently. Less filter changes and maintenance every 7,500 gallons of purified water. Cleanable sediment filter is re usable. Combination of KDF85 and KDF55 with earth friendly catalytic carbon filter reduces chlorine, chloramines, iron, sulfur and heavy metals great for city or well water. Highly recommended when using more than 150 gallons of purified water per week average.