Product Description The Apricus solar water heater design uses evacuated tube and heat pipe technology, providing high efficiency solar thermal conversion. Apricus solar collector is certified to international standards, we sell in more than 30 countries worldwide.Below are the key features of the Apricus Solar Collector design.1. Internationally certified product2. Reliable, efficient, twin-glass evacuated tubes3. Copper heat pipes for rapid heat transfer4. Easy plug-in installation5. Maintenance Free6. Suitable for mains pressure water (up to 8 bar/116psi)7. Corrosion resistant silver brazed copper header8. All stainless steel frame (439 grade SS)9. Black or Silver aluminium casing10. Stable solar conversion throughout the day (tubes passively track the sun)11. The perfect solar collector for domestic solar water heater systems12. Ideal for commercial solar water heating applications13. Comprehensive 10 year limited warranty