【Compact Size】This high pressure air pump filter adopts compact density filter. They are suitable for Young Heng Compressor. 【Fiber Cotton】These pre filters are made of high quality fiber cotton, with Large volume, good water absorption, good performance and long service life. 【Reuseable】The air compressor pump filter is not necessary to change frequently and can be reused after cleaning. 【Cleaning Method】The filter element is soaked in diluted detergent water. After the filter element is filled with water, remove and then dry and then soak into the detergent water. Then 人epeat air drying several times. Please note: Do not squeeze or rub. Extrusion will result in deformation of the filter and poor dewatering. 【Good Helper】The pump prefilter is fit and work great. And they are totally necessary for high pressure air pump., Manufacturer: Fafeicy