Combicoulomat Fritless (Contains Methanol) Karl Fischer Reagent For Coulometric Water Dete Mination. Make: Merck (Catalogue No.Aqua Star 1.09257.0500), Hydranal Or Similar In 500Ml Bottle Pack. No Te: Material Should Have Minimum 2 Years Shelf Life At The Time Of Receipt. [ Warranty Period: 30 Months After The Date Of Delivery ] ]