Xfactor Hydro&reg; RDWC (Recirculating Deep Water Culture) + Top Feed Hydroponics Bucket System Xfactor Hydro Recirculating Deep Water Culture (RDWC) Hydroponic Bucket System 5 Gallon Silver Bucket reflects light & heat rather than absorb like black buckets Net Pot Lids, 370GPH Submersible Pump, Air Pump, Air Tubing, Top Feed Stakes & Expanded Clay Medium Visible bluewater level indicator and bucket drain 1 Year USA Manufacturers Warranty on all Xfactor Hydro Systems