US Water Magna Pre-Filter | Up to 25 GPM

List Price $413.91 Factory Direct Price $275.94 Sale Price $234.95
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Excellent Filter Life
Filter Options From 0.5 - 20 Micron
Positive O-Ring Seal Prevents Filter Bypass
Commercial Grade Filter System

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US Watermade in usa

Magna is a Latin word which means great, and that is the true and accurate meaning of the US Water Magna Filter. The Magna Filter comes in two sizes: 4.5 x 10 for homes up to 3 bathrooms and 4.5 x 20 for homes with more than 3 bathrooms. This is a true commercial-grade filter.

What Makes The Magna Filter So Great?

  • Magna Seal - It has a positive o-ring seal unlike traditional flat top filters
  • Magna Media The 20 filter has 36 square feet of pleated polyester commercial grade media compare that to other brand pleated filters which have 30-50% less.
  • Magna Contaminant Capacity Traps 12 times sediment depth filters, 8 times string wound filters, 2 times other pleated sediment filters.
  • Magna Made in USA Nothing made outside of the U.S. and conforms to NSF/ANSI 61 Certified by WQA


  • Pre-Filter for Water Softeners and Backwashing Filters
  • Post -Filter ahead of Disinfection System


  • Micron Rating: 0.5 - 20 Micron (depending on selection)
  • Media: Pleated Polyester
  • Peak Flow: 25 GPM
  • Maximum Pressure: 100 PSID
  • Pipe Size: 1" FNPT
  • Maximum Pressure: 90 psi
  • Includes mounting bracket, screws, and housing wrench

additional information

WarrantyLifetime Warranty On Housing
American MadeYes
Filter Size4.5 x 20
Filter TypePleated Sediment
ManufacturerUS Water Systems
More Information