Magnefine brand in-line filter installs directly in cooler line. Magnet inside catches metal debris, filter traps other types of contaminates and build-up circulating in ATF. An ATF rated filter at an affordable price. Easy in-line installation in cooler line flexible hose. No restriction type line filtering. You don’t need to pay $45-$250 for other inline filter kits. 2 hose clamps required for installation. This filter will protect your transmission from contamination, passage blockage and failure. Line filters should be considered a must install. Protect fresh rebuilds from repeat failure from missed contamination. Protect new coolers from becoming blocked. Order 2 filters for dual line installation.