1. Solar Collector, flat plate 2. Tinox blue titanium coating 3. ISO,CE,CCC,RoHS,OEM 4. Warranty: 10 years Features:Type: Flat-PlatePressure: PressurizedCirculation Type: Direct / Open Loop (Active)Heating System: Thermosyphon (Passive)Connection Type: SplitInstallation: Freestanding