We have a situation at work that needs help from this forum. We test parts using filtered transmission fluid. The filter we presently use is an inline Magnefine with 3/8-inch inlet and outlet hose connections. The filter is good for 25 microns. These particles are too big for our test. We need to find some way to filter better, like around 5 to 10 microns. The flow is low pressure. Is there something off-the-shelf that we can use? We're exploring the possibility of using a hydraulic filter setup that use replacable cartridges from McMaster-Carr and cobble up the fittings. It's just that the Magnefine filters are so convenient to use.