Growrilla’s Hydroponics System RDWC 4 Pots is a modular recirculating deep water culture kit designed for 4 plants. The RDWC 2.0 layout includes four 19 L growing pots plus a central controller pot, connected with push‑fit fittings for fast, tool‑free setup and easy reconfiguration. The system holds 75 L of solution and uses a 650 L/h water pump to circulate nutrients evenly, while an air pump delivers 20 L/min (1200 L/h) to stones in each pot for high dissolved oxygen. Typical power draw is 27 W. Recommended footprint is 80 × 105 cm with 50 cm plant spacing; it suits a 120 × 120 cm grow area. Double‑layer buckets (black interior/white exterior) block light and reduce heat, helping prevent algae growth.