Standard Fuel Tank Filter, With 1" NPT Top Cap, For Removing Microscopic Particles, 10 Microns, Of Rust, Sand, Dirt, Scale & Lint, 366 SQIN Of Filter Surface For Efficient Action, See-Thru Bowl Has An Easy To Use Sediment Drain Valve, Allow Working Pressures Of 150 PSI & Flows Of 5 GPM Gravity Fed At 24" Head.