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About product and suppliers:
        Alibaba.com offers 4,201 passive solar hot water system products. About 98% of these are solar water heaters, 1% are solar collectors, and 1% are solar energy systems. 

A wide variety of passive solar hot water system options are available to you, such as evacuated tube, flat-plate. You can also choose from freestanding, wall mounted. As well as from stainless steel, plastic. And whether passive solar hot water system is free samples, or paid samples. 

There are 4,196 passive solar hot water system suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and Greece, which supply 99%, 1%, and 1% of passive solar hot water system respectively. 

Passive solar hot water system products are most popular in South America, Western Europe, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 2,694 with ISO9001, 890 with Other, and 573 with ISO14001 certification.