The REEFER XL includes four models that give you the freedom to create more expansive, intricate, and diverse reefscapes without the constraints of the smaller tanks. All four XL models are 57.5cm (22.6?) wide and 55 cm (22?) high (excluding XL 200, which is 53 cm/21? high). They differ in length and are available in 4 sizes from 60cm (24?) long/200 liter (53 gal) capacity up to 150cm (59?) long/525 liter (140 gal). All the REEFER XL models now feature a laminated, plywood marine-spec cabinet for greater water resistance with adjustable feet for perfect leveling on any surface.