Active Aqua 55 gal Drum with Locking LidDescription High Quality Drum: This top of the line 55 gallon drum comes in a bold black color complimented by a solid cover and bolt ring closure. Ideal as a reservoir for large hydroponics systems, especially when customised by drilling the cover for tubing connections or cutting out a port for adding nutrients and testing pH levels. Features: The drum boasts a nominal capacity of 55 gallons and actual capacity of 57 gallons. With a minimum wall