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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
      • What is a Micron Rating?
      • What is Pressure Drop or Delta P?
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“Replacement for National Filter 9439 20 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.

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  • 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.

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  • 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.

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  • 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 Pall HC2206FDT6Z Hydraulic Filter ElementReplacement for Pall HC2206FDT6Z Hydraulic Filter Element 1 × $43.34
  • × Replacement for Donaldson DT9400268UM Hydraulic Filter ElementReplacement for Donaldson DT9400268UM Hydraulic Filter Element 1 × $96.19
  • × Replacement for Clark DC1275180 80/20 Cellulose/Polyester Blend Dust Collector Filter - Fire RetardantReplacement for Clark DC1275180 80/20 Cellulose/Polyester Blend Dust Collector Filter - Fire Retardant 1 × $104.85
  • × Replacement for Parker R960H1306H Hydraulic Filter ElementReplacement for Parker R960H1306H Hydraulic Filter Element 1 × $56.39
  • × Replacement for Pall HC9020FKS4H Hydraulic Filter ElementReplacement for Pall HC9020FKS4H Hydraulic Filter Element 1 × $24.94
  • × Replacement for Donaldson DT8900398UM Hydraulic Filter ElementReplacement for Donaldson DT8900398UM Hydraulic Filter Element 1 × $161.15
  • × Replacement for Donaldson P190817-461-436 NANO-Fiber MERV 15 Dust Collector FilterReplacement for Donaldson P190817-461-436 NANO-Fiber MERV 15 Dust Collector Filter 1 × $116.40
  • × Replacement for Parker R980H0806H Hydraulic Filter ElementReplacement for Parker R980H0806H Hydraulic Filter Element 1 × $36.81
  • × Replacement for Donaldson P145891 80/20 Cellulose/Polyester Dust Collector FilterReplacement for Donaldson P145891 80/20 Cellulose/Polyester Dust Collector Filter 1 × $88.05
  • × Replacement for Clark 1275118 NANO-Fiber MERV 15 Dust Collector Filter - Fire RetardantReplacement for Clark 1275118 NANO-Fiber MERV 15 Dust Collector Filter - Fire Retardant 1 × $125.85
  • × Replacement for Hydac 11304D25BNV Hydraulic Filter ElementReplacement for Hydac 11304D25BNV Hydraulic Filter Element 1 × $32.85
  • × Replacement for Torit 2625025 80/20 Cellulose/Polyester Blend MERV 11 Dust Collector Filter - FIRE RETARDANTReplacement for Torit 2625025 80/20 Cellulose/Polyester Blend MERV 11 Dust Collector Filter - FIRE RETARDANT 1 × $99.60
  • × Replacement for Wix 46682 80/20 Cellulose/Polyester Dust Collector FilterReplacement for Wix 46682 80/20 Cellulose/Polyester Dust Collector Filter 1 × $88.05
  • × Replacement for Donaldson/Torit P190817-016-436 NANO-Fiber MERV 15 Dust Collector Filter - FIRE RETARDANTReplacement for Donaldson/Torit P190817-016-436 NANO-Fiber MERV 15 Dust Collector Filter - FIRE RETARDANT 1 × $113.25
  • × Replacement for Engineered Filtration EFI-0032693 80/20 Cellulose/Polyester Blend Dust Collector Filter - Fire RetardantReplacement for Engineered Filtration EFI-0032693 80/20 Cellulose/Polyester Blend Dust Collector Filter - Fire Retardant 1 × $97.50
  • × Replacement for Vickers V6021B5C05 Hydraulic Filter ElementReplacement for Vickers V6021B5C05 Hydraulic Filter Element 1 × $65.81
  • × Replacement for Pall HC2233FMS6Z Hydraulic Filter ElementReplacement for Pall HC2233FMS6Z Hydraulic Filter Element 1 × $64.65
  • × Replacement for Fleetguard HF7102 Hydraulic ElementReplacement for Fleetguard HF7102 Hydraulic Element 1 × $32.85
  • × Replacement for National Filter 9439 20 Hydraulic Filter ElementReplacement for National Filter 9439 20 Hydraulic Filter Element 1 × $187.64

Subtotal: $1,636.17

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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