4.5" x 20" PP Sediment Filter Cartridge Spun Polypropylene Water Filter Cartridge REVERSE OSMOSIS 5 Micron/1 Micron

20" x 4.5" Big Blue Whole House Sediment Filter is made of fine melted polypropylene, which is blown and spun in a cylinder-like form. The main function of sediment filter is to remove large and fine particles from a drinking water, such as sand, dirt, silt, and rust particles. These filters have graded density layers, meaning the outer layers are more porous, catching larger particles, while the inner layers are a finer micron catching smaller particles. 

This filter cartridge fits most brands standard 20" x 4.5" big blue housings

Primary Filter Media: Spun Polypropylene (Melt Blown) Removes/Reduces: Sediment (sand, dirt, silt, rust, and scale particles) Size: 20 x 4.5 Inches Fits: Standard 20" Big Blue/Full Flow Filter Housings Capacity: 20 000 Gallons Micron Rating (Nominal): 5 Micron Flow Rate: 5 GPM Temperature Rate: 39°F~125°F (4°C~52°C) Pressure Rate: Up to 90 PSI Lifetime: 6 month (Replace once or twice times a year, depending on the local water quality)   Package: 1 PC x PP sediment filter 20 inch( About the f     iltration accuracy 1 micron and 5 micron,      we will delivery 5 micron if you have not leave message. )