Profile: Analytical Sales & Services is a manufacturer of electrical products. Our products include column heaters, column coolers, manual switching valves, automatic switching valves, stainless steel fittings, column connectors, temperature controlled column selectors, micro fluidic fittings, filters, detector lamps, collection plates, solid phase extraction cartridges and vacuum manifold filtration systems. Our PowerSelector™ ELITE allows accurate cooling and heating of liquid chromatography columns and it is designed to accommodate automated methods development & provide column stability for enhanced resolution.