Grundfos CR Unitized Mechanical Seal — Type H / E

Direct-fit unitized cartridge seals for Grundfos multistage pumps. Choose your shaft size below to match the correct OEM type and build. All versions supplied in Viton® / Silicon Carbide / Silicon Carbide (VIT/SIC/SIC) for durability, temperature, and chemical resistance.

Select your size from the dropdown above to see pricing and the exact product photo (12, 16, 22, 28 mm).

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Sizes & Cross-References

12 mm (96455086) — Type H (Threaded Cartridge) 

• Build: VIT/SIC/SIC, threaded cartridge

• Fits: CR, CRI, CRN, CRNE sizes 1, 3, 5, 8 (e.g., CR3, CRN5)

• Alt. manufacturing numbers: 96455082, 96455083, 96455084, 96455085, 96455086, 96455087, 96455089

16 mm (96484071, 96511844) — Type H (Threaded Cartridge)

• Build: VIT/SIC/SIC, threaded cartridge

• Fits: CR, CRI, CRN, CRNE sizes 10, 15, 20 (e.g., CRN15, CR20)

• Alt. manufacturing numbers: 96484071, 96511836, 96511837, 96511840, 96511841, 96511844, 96511845

22 mm (96525458) — Type E (Clamp-In Cartridge)

• Build: VIT/SIC/SIC, clamp-in cartridge

• Fits: CR, CRI, CRN, CRNE sizes 32, 45, 64, 90

• Alt. manufacturing numbers: 96416584, 96433365, 96436728, 96525458, 96525459, 96525490

28 mm — Type H (Thread-In)

• Part no.: 992626350

• Build: VIT/SIC/SIC, thread-in mechanical seal

• Fits: CR/CRN 125–255 (D28)

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Why this seal

• Unitized cartridge = consistent working length, faster installs

• SiC/SiC faces + Viton® elastomers = wear, temperature, and chemical resistance

• OEM Type H/E form factors to match Grundfos assemblies

Notes:
Please verify shaft size, series/size (CR/CRI/CRN/CRNE), and OEM Type (H/E) against your nameplate or parts list. If you need alternate material codes or help confirming the correct seal, contact us—we’ll match it to your pump, we are here to help.

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