Tianyu Filter Y-DIN 
 http://www.tianyuv.com/products_view.asp?id=49 
 Filters are usually installed in the hydraulic control valves and other equipment, the inlet to prevent particles of impurities into the channel, causing blockage, so that failure of the valve or other device is not working; filters also apply to pre-filtering air-conditioning and ventilation systems, clean room return air filter, local and efficient pre-filtration filter with easy operation and management, filtering, high-speed, simple and reliable flush 
 Series: DIN Series http://www.tianyuv.com/products.asp?clsid=499 
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