These filter cartridges feature the latest technology in filter media. Layers of melt-blown and spun-bonded polypropylenes combine to produce nominal retentions from 0.1 micron to 30 micron. Polypropylene filters feature popular end cap styles which fit most standard and sanitary style housings. Ideal as low cost membrane prefilters, these high efficiency cartridges serve a wide range of applications.

These filter cartridges feature the same high quality filter media as the all polypropylene series filters combined with self-gasketing FDA grade PVC endcaps. Typical applications for these economical cartridges include food and beverage, water purification, bottled water and cosmetics.

These filter cartridges are designed to provide the most economical solution for a wide range of filtration problems. State of the art microfiberglass is layered with spun bonded polyester to produce highly efficient particulate removal with extremely low pressure drops. The pleated construction allows greater surface area than depth type cartridges which translates directly into longer life.

These filter cartridges are designed to provide the most economical solution for a wide range of filtration problems. State of the art microfiberglass filters are layered with spun bonded polyester to produce highly efficient particulate removal with extremely low pressure drops. The pleated construction allows greater surface area than depth type cartridges which translates directly into longer life.

Keystone's Nanofiber Technology:

• Filters via both electro-adhesion and mechanical processes; pH range 5-9
• Removes virus, bacteria, cysts, endotoxin and many other submicron particles
• Ceramic nanofibers on a micro-glass matrix
• Support components constructed of pure polypropylene

Additional Features:

• Available in standard 2-3/4" dia. single layer cartridges or unique multi-layered GIANT® 4-1/2" dia. cartridges
• All sizes include single open end (SOE) with 222 silicone O-rings standard; other configurations available
• Standard or carbonized versions of Nano-media are available
• Efficiency equal to or better than polymetric UF/MF membranes with much higher flow and much lower cost and pressure drop
• Carbonized version removes humic compounds, volatile organic compounds, and disinfection by-products