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  • Quick ReferenceExpand
    • The Role of Hydraulic Filters …Expand
      • Return Line Hydraulic Filtration
      • Pressure Filters for Peak System Performance
      • The Importance of Suction Strainers
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“Replacement for National Filter NFI25SK Hydraulic Filter Element” has been added to your cart. View cart
  • Replacement for National Filter 7508 6 Spin-On Filter

    Replacement for National Filter 7508 6 Spin-On Filter

    $60.39

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 7508 6 spin-on filter offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

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  • Replacement for National Filter 7508 3 Spin-On Filter

    Replacement for National Filter 7508 3 Spin-On Filter

    $60.39

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 7508 3 spin-on filter offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

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  • Replacement for National Filter 7508 10 Spin-On Filter

    Replacement for National Filter 7508 10 Spin-On Filter

    $58.84

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 7508 10 spin-on filter offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

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  • Replacement for National Filter 9804 20HC Hydraulic Filter Element

    Replacement for National Filter 9804 20HC Hydraulic Filter Element

    $68.16

    Engineered filtration that provides OEM reliability—an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 9804 20HC element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

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  • Replacement for National Filter 9613 20 HC Hydraulic Filter Element

    Replacement for National Filter 9613 20 HC Hydraulic Filter Element

    $179.63

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 9613 20 HC element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

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  • Replacement for National Filter 9413 10 Hydraulic Filter Element

    Replacement for National Filter 9413 10 Hydraulic Filter Element

    $72.59

    Engineered filtration that provides OEM reliability—an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 9413 10 element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

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  • Replacement for National Filter NFI3SK Hydraulic Filter Element

    Replacement for National Filter NFI3SK Hydraulic Filter Element

    $43.34

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter NFI3SK element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

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  • Replacement for National Filter NFI25SK Hydraulic Filter Element

    Replacement for National Filter NFI25SK Hydraulic Filter Element

    $43.34

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter NFI25SK element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

    Add to cartLoading Done
  • Replacement for National Filter NFI10SK Hydraulic Filter Element

    Replacement for National Filter NFI10SK Hydraulic Filter Element

    $43.34

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter NFI10SK element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

    Add to cartLoading Done
  • Replacement for National Filter 8308 6 Hydraulic Filter Element

    Replacement for National Filter 8308 6 Hydraulic Filter Element

    $85.50

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 8308 6 element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

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  • Replacement for National Filter 8308 3 Hydraulic Filter Element

    Replacement for National Filter 8308 3 Hydraulic Filter Element

    $85.50

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 8308 3 element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

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  • Replacement for National Filter 8308 20 Hydraulic Filter Element

    Replacement for National Filter 8308 20 Hydraulic Filter Element

    $85.50

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 8308 20 element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

    Add to cartLoading Done
  • Replacement for National Filter 8308 10 Hydraulic Filter Element

    Replacement for National Filter 8308 10 Hydraulic Filter Element

    $85.50

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 8308 10 element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

    Add to cartLoading Done
  • Replacement for National Filter 8316 6 Hydraulic Filter Element

    Replacement for National Filter 8316 6 Hydraulic Filter Element

    $133.85

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 8316 6 element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

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  • Replacement for National Filter 8316 3 Hydraulic Filter Element

    Replacement for National Filter 8316 3 Hydraulic Filter Element

    $133.85

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 8316 3 element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

    Add to cartLoading Done
  • Replacement for National Filter 8316 20 Hydraulic Filter Element

    Replacement for National Filter 8316 20 Hydraulic Filter Element

    $134.20

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 8316 20 element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

    Add to cartLoading Done
  • Replacement for National Filter 8316 10 Hydraulic Filter Element

    Replacement for National Filter 8316 10 Hydraulic Filter Element

    $134.20

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 8316 10 element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

    Add to cartLoading Done
  • Replacement for National Filter 9804 20HC Hydraulic Filter Element

    Replacement for National Filter 9804 20HC Hydraulic Filter Element

    $68.16

    Engineered filtration that provides OEM reliability—an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 9804 20HC element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

    Add to cartLoading Done
  • Replacement for National Filter 9439 10 Hydraulic Filter Element

    Replacement for National Filter 9439 10 Hydraulic Filter Element

    $187.64

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 9439 10 element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

    Add to cartLoading Done
  • Replacement for National Filter 9439 6 Hydraulic Filter Element

    Replacement for National Filter 9439 6 Hydraulic Filter Element

    $188.43

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 9439 6 element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

    Add to cartLoading Done
  • Replacement for National Filter 9439 3 Hydraulic Filter Element

    Replacement for National Filter 9439 3 Hydraulic Filter Element

    $188.43

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 9439 3 element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

    Add to cartLoading Done
  • Replacement for National Filter 9413 6 Hydraulic Filter Element

    Replacement for National Filter 9413 6 Hydraulic Filter Element

    $73.09

    Engineered filtration that provides OEM reliability—an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 9413 6 element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

    Add to cartLoading Done
  • Replacement for National Filter 9413 3 Hydraulic Filter Element

    Replacement for National Filter 9413 3 Hydraulic Filter Element

    $73.09

    Engineered filtration that provides OEM reliability—an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 9413 3 element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

    Add to cartLoading Done
  • Replacement for National Filter 9413 20 Hydraulic Filter Element

    Replacement for National Filter 9413 20 Hydraulic Filter Element

    $72.59

    Engineered filtration that provides OEM reliability—an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 9413 20 element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

    Add to cartLoading Done
  • Replacement for National Filter 9439 20 Hydraulic Filter Element

    Replacement for National Filter 9439 20 Hydraulic Filter Element

    $187.64

    Engineered filtration that provides OEM reliability—at an excellent value.

    Proudly Made in America with ISO certified manufacturing, SONA’s direct replacement for the National Filter 9439 20 element offers trusted performance and engineered quality, all while fitting seamlessly into your existing system.

    Add to cartLoading Done
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  • 2026 Hydraulic Filter Element Cross Reference
  • 2026 Spin-On Filter Cross Reference
  • 2026 Desiccant Air Breathers
  • 2025 Dental Equipment Filters
  • 2025 Coalescer and Separator Filters
  • 2025 Suction Strainer Filters Cross Reference
  • 2025 EDM Filters Cross Reference
  • 2025 Air Intake Filters
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Review Cart

  • × Replacement for Filtermart 250699 Spin-On FilterReplacement for Filtermart 250699 Spin-On Filter 1 × $39.89
  • × Replacement for Pall HC9600FMP8Z Hydraulic Filter ElementReplacement for Pall HC9600FMP8Z Hydraulic Filter Element 1 × $42.64
  • × Replacement for Air Refiner ARM18584 NANO-Fiber MERV 15 Dust Collector FilterReplacement for Air Refiner ARM18584 NANO-Fiber MERV 15 Dust Collector Filter 1 × $104.85
  • × Replacement for Eppensteiner 169600H10LL205SP Hydraulic Filter ElementReplacement for Eppensteiner 169600H10LL205SP Hydraulic Filter Element 1 × $38.36
  • × Replacement for Finn FC7101F010BS Hydraulic ElementReplacement for Finn FC7101F010BS Hydraulic Element 1 × $32.85
  • × Replacement for MP Filtri HP0502AA25NP01 Hydraulic Filter ElementReplacement for MP Filtri HP0502AA25NP01 Hydraulic Filter Element 1 × $32.85
  • × Replacement for Rexroth 167400RH10XLS000M Spin-On FilterReplacement for Rexroth 167400RH10XLS000M Spin-On Filter 1 × $35.34
  • × Replacement for Pall HC9700FKP18Z Hydraulic Filter ElementReplacement for Pall HC9700FKP18Z Hydraulic Filter Element 1 × $81.11
  • × Replacement for Parker 922622 Hydraulic Filter ElementReplacement for Parker 922622 Hydraulic Filter Element 1 × $48.15
  • × Replacement for Pall HC8900FMT16Z Hydraulic Filter ElementReplacement for Pall HC8900FMT16Z Hydraulic Filter Element 1 × $61.29
  • × Replacement for Wix 46862 NANO-Fiber MERV 15 Dust Collector Filter - Fire RetardantReplacement for Wix 46862 NANO-Fiber MERV 15 Dust Collector Filter - Fire Retardant 1 × $104.85
  • × Replacement for Separation Technologies ST5512 Spin-On FilterReplacement for Separation Technologies ST5512 Spin-On Filter 1 × $39.89
  • × Replacement for Pall HC9601FDP16H Hydraulic Filter ElementReplacement for Pall HC9601FDP16H Hydraulic Filter Element 1 × $256.64
  • × Replacement for Donaldson P566216 Hydraulic Filter ElementReplacement for Donaldson P566216 Hydraulic Filter Element 1 × $56.39
  • × Replacement for Fleetlife FA25118 NANO-Fiber MERV 15 Dust Collector FilterReplacement for Fleetlife FA25118 NANO-Fiber MERV 15 Dust Collector Filter 1 × $121.65
  • × Replacement for Purolator Facet 9800EAM252N1 Hydraulic Filter ElementReplacement for Purolator Facet 9800EAM252N1 Hydraulic Filter Element 1 × $32.85
  • × Replacement for Eppensteiner 169800RH20XLE000P Hydraulic Filter ElementReplacement for Eppensteiner 169800RH20XLE000P Hydraulic Filter Element 1 × $32.85
  • × Replacement for Wix A06A25G Spin-On FilterReplacement for Wix A06A25G Spin-On Filter 1 × $35.34
  • × PlaceholderReplacement for Parker 925664 Hydraulic Filter Element 1 × $54.29
  • × Replacement for Purolator Facet 7835580 Hydraulic ElementReplacement for Purolator Facet 7835580 Hydraulic Element 1 × $32.85
  • × Replacement for Internormen 300123 Hydraulic Filter ElementReplacement for Internormen 300123 Hydraulic Filter Element 1 × $39.11
  • × Replacement for Donaldson P169449 Hydraulic Filter ElementReplacement for Donaldson P169449 Hydraulic Filter Element 1 × $36.81
  • × Replacement for Separation Technologies 2980L12V04 Hydraulic ElementReplacement for Separation Technologies 2980L12V04 Hydraulic Element 1 × $32.85
  • × Replacement for Parker 937725 Hydraulic Filter ElementReplacement for Parker 937725 Hydraulic Filter Element 1 × $52.27
  • × Replacement for Hydac H98004020BN Hydraulic Filter ElementReplacement for Hydac H98004020BN Hydraulic Filter Element 1 × $32.85
  • × Replacement for Parker 921166 Spin-On FilterReplacement for Parker 921166 Spin-On Filter 1 × $23.02
  • × Replacement for Parker 932635Q Hydraulic Filter ElementReplacement for Parker 932635Q Hydraulic Filter Element 1 × $77.85
  • × Replacement for Parker Commercial 9053-5073 High-Flow ElementReplacement for Parker Commercial 9053-5073 High-Flow Element 1 × $30.85
  • × Replacement for UFI ERA41NCD Hydraulic Filter ElementReplacement for UFI ERA41NCD Hydraulic Filter Element 1 × $38.85
  • × Replacement for Parker PR3032 Hydraulic Filter ElementReplacement for Parker PR3032 Hydraulic Filter Element 1 × $30.50
  • × Replacement for Parker G03732 Hydraulic ElementReplacement for Parker G03732 Hydraulic Element 1 × $32.85
  • × Replacement for Behringer BE9600812A Hydraulic Filter ElementReplacement for Behringer BE9600812A Hydraulic Filter Element 2 × $38.36
  • × Replacement for Parker 925600 Hydraulic Filter ElementReplacement for Parker 925600 Hydraulic Filter Element 1 × $25.95
  • × Replacement for Air Refiner ARM72518 80/20 Cellulose/Polyester Blend Dust Collector FilterReplacement for Air Refiner ARM72518 80/20 Cellulose/Polyester Blend Dust Collector Filter 1 × $104.85
  • × Replacement for Kaydon A2069A Separator FilterReplacement for Kaydon A2069A Separator Filter 1 × $45.59
  • × Replacement for Wix A03A125T Spin-On FilterReplacement for Wix A03A125T Spin-On Filter 1 × $42.56
  • × Replacement for Pall HC9600FKS16H Hydraulic Filter ElementReplacement for Pall HC9600FKS16H Hydraulic Filter Element 1 × $65.81
  • × Replacement for Mitsubishi FA10 ADVANCE Series Wire EDM Filter Kit - 10 Micron with metal frameReplacement for Mitsubishi FA10 ADVANCE Series Wire EDM Filter Kit - 10 Micron with metal frame 1 × $118.50
  • × Replacement for Eppensteiner 169800RH20SLE000V Hydraulic Filter ElementReplacement for Eppensteiner 169800RH20SLE000V Hydraulic Filter Element 1 × $32.85
  • × Replacement for Fleetlife FA-22343 NANO-Fiber MERV 15 Dust Collector Filter - Fire RetardantReplacement for Fleetlife FA-22343 NANO-Fiber MERV 15 Dust Collector Filter - Fire Retardant 1 × $104.85
  • × Replacement for TDC 300 80/20 Cellulose/Polyester Dust Collector FilterReplacement for TDC 300 80/20 Cellulose/Polyester Dust Collector Filter 1 × $88.05
  • × Replacement for Pall HC7400SKS4H Spin-On FilterReplacement for Pall HC7400SKS4H Spin-On Filter 1 × $35.34
  • × PlaceholderReplacement for Donaldson DT902145UM Hydraulic Filter Element 1 × $54.29
  • × Replacement for OMT CR112F10R Hydraulic Filter ElementReplacement for OMT CR112F10R Hydraulic Filter Element 1 × $39.92
  • × Replacement for Torit 8PP3253700 80/20 Cellulose/Polyester Dust Collector FilterReplacement for Torit 8PP3253700 80/20 Cellulose/Polyester Dust Collector Filter 1 × $88.05
  • × Replacement for Sandvik CHP626F10XN Hydraulic Filter ElementReplacement for Sandvik CHP626F10XN Hydraulic Filter Element 1 × $38.36
  • × Replacement for Hydac 1262994 Hydraulic Filter ElementReplacement for Hydac 1262994 Hydraulic Filter Element 1 × $72.80
  • × Replacement for Internormen 301134 Hydraulic ElementReplacement for Internormen 301134 Hydraulic Element 1 × $32.85
  • × Replacement for TVH 2538600 Hydraulic Filter ElementReplacement for TVH 2538600 Hydraulic Filter Element 1 × $32.85
  • × Replacement for Wix R38D10GV Hydraulic Filter ElementReplacement for Wix R38D10GV Hydraulic Filter Element 1 × $46.65
  • × Replacement for Donaldson P174247 Hydraulic Filter ElementReplacement for Donaldson P174247 Hydraulic Filter Element 1 × $81.11
  • × Replacement for Allison Transmission 29510910 Hydraulic Filter ElementReplacement for Allison Transmission 29510910 Hydraulic Filter Element 1 × $50.72
  • × Replacement for Fleetlife FA-22343 80/20 Cellulose/Polyester Blend Dust Collector Filter - Fire RetardantReplacement for Fleetlife FA-22343 80/20 Cellulose/Polyester Blend Dust Collector Filter - Fire Retardant 1 × $93.30
  • × Replacement for Rexroth 804521H10XLS000M Spin-On FilterReplacement for Rexroth 804521H10XLS000M Spin-On Filter 1 × $39.89
  • × Replacement for Eppensteiner 169800RH20SLE000P Hydraulic Filter ElementReplacement for Eppensteiner 169800RH20SLE000P Hydraulic Filter Element 1 × $32.85
  • × Replacement for Hydac 0160D010BN4HCV Hydraulic Filter ElementReplacement for Hydac 0160D010BN4HCV Hydraulic Filter Element 1 × $39.38
  • × Replacement for Donaldson P149554 80/20 Cellulose/Polyester Dust Collector FilterReplacement for Donaldson P149554 80/20 Cellulose/Polyester Dust Collector Filter 1 × $88.05
  • × Replacement for Parker 924450 Hydraulic Filter ElementReplacement for Parker 924450 Hydraulic Filter Element 1 × $41.73
  • × Replacement for National Filter NFI25SK Hydraulic Filter ElementReplacement for National Filter NFI25SK Hydraulic Filter Element 1 × $43.34

Subtotal: $3,369.95

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  • Products
    • Hydraulic Filter Elements
    • Spin-On Filters
    • Desiccant Air Breathers
    • Dental Equipment Filters
    • Dust Collector Filters
    • Coalescer and Separator Filters
    • High-Flow Elements
    • EDM Filters
  • Cross by Brand
    • Pall Replacements
    • Parker Replacements
    • Hydac Replacements
    • Donaldson Replacements
    • WIX Replacements
    • Behringer Replacements
    • Zinga Replacements
    • Air Sentry Replacements
    • Des Case Replacements
    • More…
  • Quick Reference
    • The Role of Hydraulic Filters …
      • Return Line Hydraulic Filtration
      • Pressure Filters for Peak System Performance
      • The Importance of Suction Strainers
      • What is a Micron Rating?
      • What is Pressure Drop or Delta P?
      • What is Filter Efficiency?
      • What is Dirt-Holding Capacity?
      • What is ISO 16889?
    • FAQs
  • Contact Us
  • SONA Info
    • About Us
    • Your Privacy…
    • Shipping
    • Returns
    • Warranty