EZ Clone Low Pro 64 Systm Black Product:EZ C 64 Low Pro Sys Black They will now be rated General Hydroponics Liquid KoolBloom They will now be rated at AHAM standards based on the recent US Department of Energy ruling The FloraFlex® Matrix System is a patent pending first of its kind Top Feeding Wicking System that provides the most even way to deliver water and nutrients to your potted plants These are just some of the 75 plus improvements designed specifically to make cloning even easier Also a specially designed recessed drain that allows it to be highly protected and gives the ability to easily tip the unit for draining