... Certificate: ISO,CE,SGS 2 SABS SRCC SOLAR KEYMARK Standard 3 OEM Available split solar system for shower or swimming poolsize: 47mm,1500mm ... .2. that product work with work station,make a full system completely autumatic, you can uae hot water anytime, high efficient ... no-pollution.3. installation: instal full system is very easy just connect each parts, each system have manual instruction.4.use copper ...