Hyper-Logic Poly Spun Sediment Filter | 20 x 2.5 in, 5 Micron

Where a Poly Spun Sediment Filter Sits in the Line Ahead of the membrane, in the stainless housing. This is a 20 in by 2.5 in melt-blown polypropylene cartridge rated at 5 micron. It is the pre-filter HydroLogic runs on its industrial and heavy industrial systems. The housing it drops into is stainless, not the clear plastic bowl of a domestic filter. It catches sand, rust and silt so the membrane does not have to. How Often a 5 Micron Pre-Filter Wants Changing Monthly is the interval, or sooner once differential pressure across the cartridge climbs past 10%. That second trigger is the one to watch, because it tracks your actual water rather than the calendar. Depth filters like this one are not cleanable. Particles load through the thickness of the media instead of sitting on a pleated surface, so rinsing does not recover them. A cleanable pleated cartridge is a different part entirely. Two diameters exist in the range: this slim 2.5 in body and a 4.5 in version for the larger housings. Both are 20 in long, which is exactly why the wrong one gets picked. Check the diameter, not the length. It carries part number HGC741683, formerly HL 13519. Key Features 5 micron, melt-blown: Polypropylene depth media, catching sand, rust and silt. 20 in by 2.5 in: The slim housing size. A 4.5 in version exists for larger housings. Change it monthly: Or sooner, once differential pressure across it passes 10%. Not cleanable: Depth media loads through its thickness. Rinsing does not recover it. Protects the membrane: This part wears out so the expensive one behind it does not. Formerly HL 13519: Same cartridge, current part number HGC741683. Check the diameter: Both sizes are 20 in long, which is how the wrong one gets picked. Technical Specifications Specification Value Brand Hyper-Logic, by HydroLogic Part Number HGC741683 Supersedes HL 13519 Micron Rating 5 micron Length 20 in Diameter 2.5 in Media Melt-blown polypropylene, poly spun Type Depth filter, not cleanable Replacement Interval Monthly, or when differential pressure exceeds 10% Position In the stainless housing, ahead of the RO membrane Used On Industrial and heavy industrial series RO systems Other Diameter 4.5 in version, same 20 in length Weight 1.0 lb UPC 812111016036