Gargi Group manufactures Exothermic Sleeves. Some of the industries of Gargi Group are ISO 9001:2000 certified. The Exothermic Sleeves are designed to initiate an exothermic reaction in the riser thus liberating heat; insulating sleeves provide an efficient thermal insulating layer thereby conserving the heat in the riser over an extended period. The Exothermic Sleeves are recommended for use on riser diameters from 25 mm to 350 mm.