Folded filter cartridge interface types and dimensions: Depending on the internal structure of the filter, the appropriate filter cartridge must be selected. Currently, for folded filter cartridges, the interface types include 226, 222, 215, 220, flat-end, and flanged types. When purchasing filter cartridge consumables, users should pay attention to the internal structure of the filter. Improper selection may result in the filter cartridge being incompatible with the filter, making installation impossible. The corresponding dimensions are as follows for reference:

Model Inner Diameter (mm) Outer Diameter (mm) Outer Diameter with O-Ring (mm)

222 32.1 44.3 45.5

226 43.9 56.5 58.7

215 23.1 31.3 33.6

220 24.6 33.9 35.6

Microporous folded filter cartridge: Constructed from ultra-fine polypropylene fiber membrane and non-woven fabric or (wire mesh) inner and outer support layers, the filter cartridge housing, central rod, and end caps are manufactured using hot melt welding technology, containing no adhesives, ensuring no leaks, and preventing secondary contamination. The folded design provides a large membrane filtration area, high dirt-holding capacity, low pressure drop, and a long service life. The filter cartridge is made entirely of 100% pure PP material and has a wide chemical compatibility range.

Filter cartridge interface type selection and specification dimensions diagram: