QAP1006 Features: * Bulb * Replacement for turbo-twist UV sterilizer * Emits UV-C rays for eliminating and controlling single-cell algae, bacteria and parasites Options: * Available in 9W, 18W and 36W sizes Dimensions: * 9W Weight: 1 lbs * 9W Dimensions: 2.78"" H x 2.78"" W x 11"" D * 18W Weight: 2 lbs * 18W Dimensions: 8"" H x 1"" W x 1"" D * 36W Weight: 2 lbs * 36W Dimensions: 8"" H x 1"" W x 1"" D