Hydrocollator, 8 Packs

HYDROCOLLATOR / PACK HEATER, 8 PACKS =40 LITERS TANK CAPACITY, BUT WATER FILLING CAPACITY IS APPROXIMATE 25 LITERS, BALANCE FILLED BY THE PACKS. DIP PACKS IN COLD WATER FOR HALF AN HOUR BEFORE IMMERSING IN HOT WATER FOR LONGER LIFE.