- Quad Zone technology allow the formation of 4 separate filtration zones within the depth of the filter cartridge
- Continuous 4-zone structure provides effective pre-filtration and final filtration
- State of the art computer controlled manufacturing process delivers an extremely accurate and consistent product per each zone for proper fiber sizing
- High-strength polypropylene core maximizes flow and optimizes each of the 4 zones If required all Quad series may be ordered with cores
- All Quad Series cartridges are free of surfactants, binders or adhesives of any kind
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