P. L. Tandon & Co. Offers Refrigerated Water Bath with Circulation System. P. L. Tandon & Co. Is an ISO 9001 2000 certified co. And manufactures laboratory instruments. The Refrigerated Water Bath with Circulation System features a stainless steel made Inner chamber and mild steel painted or powder coated outside. The gap between the two is filled up with glass wool. It incorporates an immersion heater placed in the chamber for heating and sturdy refrigeration unit for cooling. It can control temperature from 5 deg C to 90 deg C with sensitivity of &plsmn; 2 deg C. The front panel of this Refrigerated Water Bath with Circulation System has an indicator lamp with individual switches which is used for heating and cooling purposes.