Since 1989 The Single Source for Hydraulic Filter Products When you are looking for a Hydraulic filter supplier contact the source. Main Filter Inc. manufactures a full range of hydraulic filter products, making it the single source for all your hydraulic filter needs. Our manufacturing and design expertise provides you access to field-tested products and services designed to address your standard or custom hydraulic filter needs. Main Filter Inc. offers you one of the largest hydraulic cross references available, with over 1,200,000 crosses covering over 1,600 different companies. With our entire focus on hydraulic filter, we assure you that we will provide you with accurate, up-to-date, information regarding hydraulic filter products and services. Main Filter Inc. will provide you with the right answers to your unique hydraulic filter requirements. We know our experienced team will save you time, money and aggravation.