Active Aqua Premium Reservoir Cover White 70 Gallon HGC760774 Cyco Commercial Grow is great

Cyco Commercial Grow is great for all hydroponic applications such as drip systems

Optimized air-holding capacity provides an excellent environment for promoting root growth

also known as thiamine

Hydroguard's reformulation makes it even more effective than before

conductivity (EC & TDS)

Active Aqua Premium Reservoir Cover White 70 Gallon HGC760774 Cyco Commercial Grow is great70 GALLON PREMIUM WHITE RESERVOIR COVER 55. 25" x 38. 25" x 1. 25" ACTIVE AQUA PREMIUM RESERVOIR COVER Our premium reservoir covers are slightly convex with a ribbed design for strength. They fit inside the reservoir top to guarantee that any water that may collect on top falls back into the reservoir. They feature a convenient access porthole (porthole cover available separately) and multidrill access points to install various meters and pump cords.