Product Specification: Material: ABS, plastic Maximum regeneration days: 12 days Voltage: 110 V/60Hz Working Pressure: 0.1-0.6 MPa Tank pressure: 0.6 MPa Power: 3W Working temperature: 32-104? Operation mode: automatic Inlet and outlet: 2.8 cm/1.1 inch Product size: 18.5*9*21 cm/7.28*3.54*8.27 inches Package size: 29*20*24 cm/11.4*7.9*9.4 inches Gross weight: 2.4kg/5.3lbs Package Includes: 1X Clock control valve 1X upper distributor 1X lower distributor 1X L-type quick coupler 1X English manual Other assembly accessories NOTES: 1. We strongly recommend that this product be installed by a professional. 2. An external valve is required to block the hard water bypass during regeneration. 3. Please allow for slight colour difference caused by shooting light and 1-3 cm error caused by manual measurement and make sure you don't mind before ordering.