The 3 Line Filtration Kit from Buyers Products includes everything you need to set up a 3 line installation with return line filtration, including a 25 micron filter. Having a third line — a dedicated return hose — in your dump pump hydraulic system gives you more efficient operation from faster cycle times. Adding a return line filter keeps fluid free from contaminants and extends the life of your system components. This 3 line installation is specially designed to handle high-return flow rates up to 100 GPM. It features dual 25 micron return line filters in a space-saving over-under design.