ALIEN Hydroponics RDWC 12 Pot 1 Row 20L Compact Header Kit with Air Pump controllers the 3:1 drain ratio means

the 3:1 drain ratio means it uses up a gallon of wastewater for every 3 gallons of pure water you get

The V-SYSTEM 16 Pot 4 Row Kit Includes:

which opens them up for a variety of applications in the chemical processing field

the Dosatron operates by using water pressure as the power source (no electricity needed)

ALIEN Hydroponics RDWC 12 Pot 1 Row 20L Compact Header Kit with Air Pump controllers the 3:1 drain ratio meansDescription The ALIEN RDWC 12 Pot 1 Row Kit is available in 2 pot sizes and 2 header configurations, with or without an air pump (required for operation). Easy to configure and assemble with advanced features and setup options, grow 12 plants to perfection in recirculating deep water culture with this ALIEN RDWC Kit! Specifications Brand: ALIEN Hydroponics SKU: BD100 1112CA Product Name: ALIEN Hydroponics RDWC 12 Pot 1 Row 20L Compact Header Kit with