The Flo-n-Gro? Blue Bucket features food-grade plastic?safe for you and your plants. At 4 gallons, it has plenty of space to grow your favorite plants. Its unique space-saving design makes it easy to fit into any room or system. Dimensions: 9.5 in W x 9.5 in L x 13.5 in D. Compatible with the Ebb & Flow 6 & 12 site systems and Drip-n-Gro? System. Does not include 3/4 in grommet. Use with Tub Outlet Tee Fitting 3/4 in #747186 or 1/2 in #742266 sold separately. Works with Flo-n-Gro? 2 gallon #350800 and 3 gallon #707640 mesh inserts.