ZHEJIANG ZHENHANG INDUSTREAL GROUP Co., Ltd. is located in Zhejiang Green Valley forest City - Lishui City

The enterprise specializes in the research and development and production of agricultural machinery, construction machinery, heavy vehicles and other filters. Strong technical force, advanced production equipment, complete detection means. Strictly according to IATF16949 system to make high quality level in OEM+OBM+ODM three dimension.



Deeply cooperate with international and domestic authoritative experimental institutions to test the performance comparison of our products and OE parts.

GreenFilter’s fuel filter compare with C BRAND original fuel filter,the fuel water performance 20% higher than original.


Technology innovation is a basic policy of our future strategy. Zhejiang Zhenhang is a product supplier with a clear goal. From concept definition to industrialization of synchronous projects at different stages, Zhejiang Zhenhang relies on its rich technical experience, advanced production equipment and a highly qualified humanized team to provide important technical support to its customers.


how an oil filter works?

An oil filter works by trapping and capturing contaminants, such as dirt and metal particles, that can damage an engine. The filter is usually made of a paper or pleated cloth material and is installed between the engine and the oil pan. As the oil flows through the filter, contaminants are trapped in the filter's media while clean oil is allowed to pass through. The filter must be replaced periodically to prevent excessive buildup of contaminants and ensure the engine runs properly.

 Why use Genuine GreenFilter Oil Filters?

Designed specifically for your engine, this truly eco-friendly filter traps particles and removes pollutants from the oil. The filter element is made of high quality material, which has the highest efficiency, durability and can effectively prevent dangerous contamination. The filter also has a special construction, which helps to reduce the oil bypass, guaranteeing the best performance. In addition, the structure of the filter makes the replacement of lubricating oil more convenient, and also avoids confusion during processing.

 How  often shoulder filters be checked?

Filters should be inspected once a month, or depending on their type and application. For example, HVAC filters should be inspected at least once every one to three months.

The air filter of the vehicle shall be tested within 7500 km or according to the manufacturer's recommended maintenance program.

In addition, the filter should be regularly tested according to the manufacturer's instructions.

 Why is it important?

Keeps engine oil clean.

Reduces wear on engine and improves performance.