Control the flow rate of the fountain and water level in your planter with customizable plumbing fittings. Expanded clay grow media replaces soil from traditional gardening and serves as the support for your plants. (grow media does not degrade). Overall 20 x 20 x 19 h. Reservoir: 16 x 16 x 13.Charcoal with natural stone-like color variations. 160 gallon per hour submersible pump (9.5 watts/120v).