4" SCREW-ON See Through Filter Assembly

    Part Number : 405-115 & 405-115-B
    Smallest Particles Filtered : depends on System 1 or disposable filter microns, varies on brand
    Recommended System 1 Filter: (not included) System 1 Billet Pro Series and
    Chevy adapter threaded bushing
    Recommended Disposable Filter to use in place of S1 : (not included)
    K&N # HP-2002 or # HP-3002 or
    WIX #51069 or # 51060
    BlackOut Series can use Napa Gold filters
    Disposable Filter Thread Size : 13/16” – 16 TPI
    Bypass Relief Valve : Yes
    Inlet & Outlet Fitting : #12 O-Ring Boss – 1 1/16” – 12 TPI
    Operating Temp : max 220 degrees Fahrenheit
    Operating Pressure : max 150 PSI
    Height (without disposable filter) : 3.00 in.
    Width : 5.00 in.
    Length : 6.00 in.
    Filter Weight : 3.4 pounds


For use with 50 weight or lighter oil, a 4'' screw-on see-through filter assembly with #12 ports and a 115 micron element is available. To be used with a System 1 Filter or disposable filters on the bottom, this filter is machined with a flat sealing surface.
Clear View Filtration’s Patented Dual Oil Filter Assemblies are the Best Oil Filtration System Available. This 4” Screw-On Filter Assembly was designed for most Big and Small Block Engine combinations, including Street, Dirt and Marine use. This filter is machined with a flat sealing surface for use with a System 1 filter. This filter is the best choice for motorsports ran on dirt and other applications where the user wants to filter microscopic and dust particles out of the oil system. Also where space is limited and being light weight is important! Oil first flows through the See Through Filter with a coarse 115 micron screen which traps all the larger particles that can be viewed and inspected while the microscopic particles flow into the System 1 which has a finer mesh screen. The clean filtered oil flows out of the filter assembly through the outlet opening back into the engine. A shot of air empties the filter in seconds exposing the element and filtered particles without draining or leaking any oil and without unbolting or loosening any fasteners or fittings.