Choose these string wound, depth-type cartridges when low-cost, nominal filtration is required. Standard fiber and core materials include cotton over 304 stainless steel, polypropylene over polypropylene, and glass over 316 stainless steel. Others are available.

• 2-1/2" OD x 1" ID and 9-3/4" or 29-1/4" length
• Nominal micron ratings: 0.5 1, 3, 5, 10, 20, 30, 50, 75 and 100

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"WP" SERIES Polypropylene Cartridges
The standard polypropylene (Poly) fiber and core "WPU" cartridge has excellent compatibility with strong acids and concentrated alkalis. It is used extensively in filtering all classifications of water, except potable drinking water. The all poly cartridge is an excellent choice for ambient temperature applications requiring low cost and broad compatibility Maximum recommended operating temperature is 125° F (52° C).

"WC" SERIES Cotton Cartridges
The standard bleached cotton fiber on a 304 stainless steel core "WCA" cartridge has a high dirt holding capacity because of the ribbon shape and rough surface of the natural fiber which cannot be achieved with a synthetic man made fiber. Maximum recommended operating temperature is 300° F (149° C). The "WCA" cotton cartridge is ideal for filtration of natural gas treating fluids such as monoethanolamine (MEA) and Diethanolamine (DEA).

"WF" SERIES Glass Fiber Cartridges
The standard Glass Fiber string wound on a 316 stainless steel core "WFS" cartridge has a broad range of chemical compatibility except with alkalis, steam and hydrofluoric acid. Maximum recommended operating temperature is 750° F (400° C). The "WFS" glass fiber cartridge is designed for applications requiring greater than 300° F operating temperatures, such as heat transfer fluids and hot oil circulating systems.

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