... water quality, poor water pressure, high temperature. DLSB-30/20,30,40,60,80,120 modelRefrigerating abilityCirculating ablilityControl-temp ablityWorking ... conditionsoverallCapacityMin tempRefrigerating capacityflowliftTemp rangeaccuracyvoltageenvironmentLWHtemphumidityDLSB-30/2030-246249-182520L/min4-6m-20±0.222025(60 ...