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Pentek CRE-1 Ceramic Filter Cartridge, 9-3/4" x 1-7/8", 1 Micron

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Specifications for this item
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Particle Retention Size
1  Micron

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Key Features

  • Reduces fine sediment and protozoan cysts in residential drinking water
  • Nominal filtration rating of 1 micron and 99.95% reduction of cysts
  • Sintered ceramic filter media with thermoset polymeric end caps can be cleaned several times
  • Initial pressure drop of 19 psi at a flow rate of 1 gpm
  • Temperature range of 40 to 125 degrees F (4.4 to 51.7 degrees C)

Package Details

Shipping Weight: 0.65 pounds
Package Size: 11.1 x 3.3 x 3.2 inches

Product Description

This Pentek CRE-1 ceramic filter cartridge reduces protozoan cysts and fine sediment in residential drinking water. It has a nominal (85%) filtration rating of 1 micron, and 99.95% efficiency for the removal of protozoan cysts. This cartridge is made of sintered ceramic media with thermoset polymeric end caps for strength and rigidity. The nitrile butadiene rubber (Buna-N) gasket seals the cartridge against the housing (sold separately). This filter can be cleaned several times with a sponge or nylon brush. The cartridge has an initial pressure drop of 19 pounds per square inch (psi) at a recommended flow rate of 1 gpm, and it operates over a temperature range of 40 to 125 degrees F (4.4 to 51.7 degrees C). This ceramic filter cartridge is for use in residential drinking water purification.


Nominal filtration rating 1 micron
Removal of protozoan cysts 99.95%
Initial pressure drop at 1 gpm 19 psi
Operating temperature range 40 to 125 degrees F (4.4 to 51.7 degrees C)
Maximum dimensions (H x W) 9-3/4 x 1-7/8 inches (248 x 48 mm)

The nominal filtration rating is for a particle removal efficiency of 85%. Protozoan cysts include Giardia, Entamoeba, Cryptosporidium, and Toxoplasma.

H is height, the vertical distance from lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Water filters remove undesirable particles, chemicals, and microorganisms from water by means of a semipermeable barrier, adsorption, or biological processes. They are made of densely packed synthetic or natural fibers that trap suspended particles, materials that block microbes or adsorb unwanted chemicals, or substances that cause a chemical change, such as acid neutralization. For most residential, commercial, and industrial applications, water filters are manufactured in the form of replaceable cartridges that fit inside permanent housings. Filtration systems typically consist of a series of two or more types of filters, each designed to remove different contaminants. The performance of filters is measured by the minimum particle size that is blocked, the percentage of particles or microorganisms that are removed, the downstream concentration of unwanted chemicals, the maximum flow rate, and the amount of water that can be filtered before the filter must be replaced. Water filters are used in a wide range of applications, including drinking water purification, swimming pools, industrial processes, and irrigation, among others.

Pentair manufactures industrial, commercial, and residential water filtration components and systems. The company, founded in 1966 and headquartered in Minneapolis, MN, meets International Organization for Standardization (ISO) standards 9001 and 14001 for quality assurance.

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