Current Culture® Under Current® XL | 25" Spacing Number of Sites:6 Our optics also exceed international

Our optics also exceed international drop ball test standards

We are able to stabilize the extract in a sterile form so that it may be safe for hydroponic and organic systems

Outside Dimensions:  30" x 30" x 7

and deep water culture

Current Culture® Under Current® XL | 25" Spacing Number of Sites:6 Our optics also exceed internationalCurrent Culture Under Current XL The Under Current is the world's first recirculating Water Culture Hydroponic System featuring our Patented Sub Current Culture Method. This innovative application circulates literally hundreds of gallons of solution per hour beneath plant roots. The Under Current supercharges the solution with dissolved oxygen, creating a hyper aerobic condition. An inline Danner Mag Drive pump provides peripheral negative pressure by