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PET Series Polyester Pleated Filter CartridgesPET Series Polyester Pleated Filter CartridgesPET Series Polyester Pleated Filter Cartridges

PET Series Polyester Pleated Filter Cartridges


Hongtek PET Series Polyester Pleated Filter Cartridges are constructed of pleated Polyester(PET) filter media, with central core and high-grade end cap. Polyester pleated cartridges have low pressure drop and high flow capacity. PET pleated cartridges are produced using 100% synthetic fibers, which are free of binders or adhesives, exhibiting highly effective retention efficiency. What’s more, they are washable and reusable commodiously.

Polyester pleated filter cartridges also called water replacement filters. The pleated design increases surface area and extends service life, making PET pleated cartridges to be one of the most economic options in water treatment.

Filter MediaPolyester (PET)
Length5", 9.75", 9.8", 10", 20", 30", 40"
Outside Diameter2.68"(68mm)
Inside Diameter1.1" (28mm)
Filtration Rating1μm, 5μm, 10μm, 20μm, 30μm, 50μm, 100μm
Outer NettingPolypropylene
End Caps/GasketsPlastisol/Polyurethane
End Cap TypeDouble Open End (DOE)


● Excellent compatibility with a wide range of chemicals and sanitizing agents

● Fewer change out and easy to washed and reuse, less maintenance are required

● Available in a lot of lengths to meet different demands and equipment requirements

● Plastisol (PVC) end caps/gaskets offer positive seal, large surface filtration area with high flow rate

● Polypropylene outer netting strengthens resistance to pressure, prolonging the service life of PET pleated cartridges

PCWPre RO/DIElectronics
Drinking WaterCooling WaterFood & Beverage
PharmaceuticalsIndustrial Water & PlatingChemicals & Organic Solvents


Operation Data for Polyester Pleated Filter Cartridges

Maximum Operating Temperature75℃(167℉)
Max. Differential Pressure4.8 bar at 20℃ (70 psi at 68℉)
3.4 bar at 50℃ (50 psi at 122℉)
Maximum reverse pressure40 psid @ 70°F (2.8 bar @ 21°C)
Recommended Change Out Differential Pressure2.4 bar (35 psid)

Pressure Drop Rate for 10" Polyester Pleated Filter Cartridges


Tech Support


● Hongtek end cap is made of high quality Polyurethane, smooth surface is good for sealing, when others made of inferior glue and rough

● Hongtek PET pleated filters are tightening pleated with larger filtration area, when others are sparse pleated counts with less surface area

● The Pleated counts of Hongtek polyester pleated cartridges is equal or greater than 50, when low quality made less than 50 pleated counts

● Hongtek PET pleated cartridges have advanced outer netting to strengthen the whole construction, others don't make good neat outer netting

Order Information
PETLengthMicron RatingOutside

PET Series 

Polyester Pleated Filter Cartridges

5 = 5"1 = 1μmW = With PP Netting
9.75 = 9.75"5 = 5μm
9.8 = 9.8"10 = 10μm
10 = 10"20 = 20μm
20 = 20"30 = 30μmO = Without Netting
30 = 30"40 =  40μm
40 =40"50 = 50μm
100 = 100μm

For Example:


PET Series Polyester Pleated Filter Cartridges - 10" - 5μm - With PP Netting