701-0.35 Premium Polyester Filter Cartridge 9-3/4"
- Particulate filtration, polishing
- High surface-area pleated design
- Lower initial pressure drop
- Longer life, higher loading
- Lengths: 9-3/4″ to 40″
Compatible Housings
701-0.35 701 Premium Polyester Filter Cartridge
The Harmsco 701-0.35 is a 0.35 micron nominal rated premium polyester filter cartridge — the double-open-end workhorse of the Harmsco polyester line. It measures 2.5″ OD x 9.75″ long and is NSF certified, made in the USA since 1958.
The 701-0.35 carries 5 sq ft of pleated Polyester-Plus media and flows up to 4 GPM with low pressure drop, rated for continuous service to 140°F. Pleated construction holds several times the dirt of wound or spun elements at the same 0.35 micron rating, stretching change-out intervals accordingly.
Plants specify the 701-0.35 for standard double-open-end housings across industry, commercial building and well water, process and utility loops, and pre-RO and pre-UV protection. See the compatible housings on this page for the exact models it fits.
The pleated Polyester-Plus media rinses clean and returns to service in most sediment duties, cutting cost per gallon. Track differential pressure across the housing and change the cartridge at your target ΔP to keep flow at design and protect downstream equipment.