(Model #153) Simple. Safe. Versatile. Continuously adjustable. (16 cm wide up to 50 cm long) For running SDS-PAGE , DNA sequencing or preparative gels. Buffer capacity: upper: 350ml, lower: 350ml Extra heavy duty construction.FEATURES AND OPTIONS: Continuously adjustable upper buffer chamber Many sizes of in stock- glass plates Both in stock and custom combs and spacers are available Aluminum heat exchangers