The CCH2O heavy duty, professional grade Under Current® Pro growth modules were specially designed for commercial and greenhouse growing applications. The massive 35-gallon module features water volume indicators, recessed bulkhead inlets, drain valve cove, easy drain bottom and molded inlets for a float valve and water inlet tee. Made of UV stabilized, solid ABS the Under Current® Pro modules were built to last. Manufactured in California. Multiple lid configurations available to fit all growing applications. These items are drop ship only.