... 55G, 30G ,20G, 5G or make it as your requirementsspot supply standard specificationsDescription and volumeDrum heaters:200L ... Freeze protection for hardware.NOTE For Made-to-Order heaters, please provide the following: Qty, Size, ... Watt density, Temperature, Operating temperature, Options, such as holes, PSAS etc.For more information about flexible heaters ... /230v/2000w or customize as your requirements