4.5" x 20" Big Blue Sediment Filter Cartridge - 5 Micron Usually the color change from

Usually the color change from green to light yellow when the media is about to get exhausted

which typically only requires replacement every 2–3 years depending on water quality and usage

1st Stage - Sediment

5-Stage RO/DI Replacement Kit (Stages 1–3 & 5) – No RO Membrane

Ideal for Aquariums

4.5" x 20" Big Blue Sediment Filter Cartridge - 5 Micron Usually the color change fromBig Blue Sediment Filter is the same as the Liquatec SDF 45 2005 Sediment Filter. This water filter is resistant to chemicals and reduces waterborne contaminants like rust, sediment, silt and sand. Made of 100% polypropylene the graded density provides a higher dirt holding capacity than standard spun polypropylene and string wound cartridges. This 5 micron filter, also known as part number SDC 45 2005 is ideal for food service, residential,