Durable stainless steel baths for gently warming samples, evaporating liquids or melting solids such as agar. Copper clad immersion heaters provide temperatures to 100°C. Fully covered, bath openings become progressively larger in 1" increments as each ring is removed. Adjustable water level regulator is matched brass with 1/4" tube for raw water supply and drain. Supplied with support frame. Switch controls high, medium, or low heat settings. 110V.