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Shaft Seals

  • Type n11, C, 1 Mechanical pump Seal - buy now

    185c

    185c

    Item #185C

    Single Spring Mechanical Seal 185C — 1-1/4″| PS-185 Equivalent

    Equal to: Industry standard 185 / PS-185

    Typical applications: Centrifugal pumps, mixers, and other rotating equipment.

    Key specs: Shaft size: 1-1/4″ single spring seal • Seat: 1.875″ x 0.437″ cup • Rotary OD: 1.787″ • Working length: 1.062″

    Design & construction:
    Crimped rotary head (Type N-11)—similar to industry Type C / 21; can also replace Type D / 2 with a simple spring change (in most cases). Electro-polished 304 stainless steel metal parts. Elastomeric bellows. Non-directional (independent of shaft rotation).

    Materials available (choose from dropdown)

    • CAR/CER/NIT — Carbon vs. Ceramic faces, Nitrile elastomers

    • CAR/CER/VIT — Carbon vs. Ceramic faces, Viton/FKM elastomers

    • SIC/SIC/VIT — Silicon Carbide vs. Silicon Carbide faces, Viton/FKM elastomers

    Please click “specifications” below for OEM numbers and Pump Nameplate Data

    Have questions? Check out our Single Spring Seal Guide  or call us anytime—we’re here to help.

    Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.

    Looking for more? Shop Pump Repair Kits, Parts & Accessories, and  Gaskets.

    View Product
  • N22 pump seal ps-2016, ps-4518 ps-188 ps-754 ps-204 ps-361 ps-354 ps-305 ps-745 ps-205 ps-523 ps-479 ps-537 ps-323

    188c

    188c

    Item #N/A

    Single Spring Mechanical Seal 188c | PS-188 Equivalent

    Equal to industry standard number 188 / PS-188

    Shaft size: 7/8″ single spring mechanical seal with 1.500″ x .405″ cup seat, 1.315″ rotary OD, 1.437″ working length

    Crimped rotary head type N-22. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

    Interchange / replacements:

    • Equivalent to Pac-Seal T-21 (long working length) and Burgmann MG9

    • Can replace Type E and Type 1 in many applications (confirm dimensions)

    Design & construction:

    • Electro-polished 304 stainless steel metal parts

    • Elastomeric bellows for stable sealing and easy installation

    • Independent of shaft rotation

    Material options (select above):

    • CAR/CER/NIT — Carbon/Ceramic, Nitrile elastomers

    • CAR/CER/VIT — Carbon/Ceramic, Viton/FKM elastomers

    • SIC/SIC/VIT — Silicon Carbide/Silicon Carbide, Viton/FKM elastomers

    Please click “specifications” below for OEM numbers and Pump Nameplate Data

    Have questions? Check out our Single Spring Seal Guide  or call us anytime—we’re here to help.

    Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.

    Looking for more? Shop Pump Repair Kits, Parts & Accessories, and  Gaskets.

    View Product
  • ps-100 , ps-200 , ps-201 mechanical seal- buy now!

    200c

    200c

    Mechanical Seal 200 — Type 166 (5/8″) | PS-200 Equivalent

    Equal to industry standard 200 / PS-200.
    Direct-fit Type 166 single-spring seal for pool/spa and small-pump applications—built with molded carbon / ceramic faces and Buna-N elastomers for dependable everyday service.

    At-a-glance specs: 5/8″ shaft • 1.25″ × 0.406″ cup seat • Carbon/Ceramic faces • Buna-N elastomers

    Why choose 200 (PS-200):

    • Proven T-166 footprint for quick replacement

    • Reliable materials for clean-water, standard-chemistry systems

    Upgrades / Variations (same footprint)

    • 516 — Premium carbon face

    • 3867 — Premium + Viton

    • 200cv  — Molded carbon

    • 200cvss — Silicon Carbide / Silicon Carbide / Viton

    Have questions? Check out our Pool/Spa Small Pump Guide or call us anytime—we’re here to help.

    Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.

    Looking for more? Shop Pump Repair Kits, Parts & Accessories, and Pre-Cut Gaskets.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    View Product
  • ps-100 , ps-200 , ps-201 mechanical seal- buy now!

    200cv

    200cv

    Mechanical Seal 200CV — Type 166 / T-16 (5/8″) | PS-200V-CMS Equivalent

    Equal to industry standard 200CV / PS-200V-CMS.
    Direct-fit Type 166 / T-16 single-spring seal for pool/spa and small-pump applications—built with molded carbon/ceramic faces and Viton/FKM elastomers for added chemical and temperature resistance.

    At-a-glance specs: 5/8″ shaft • 1.25″ × 0.406″ cup seat • Molded carbon/ceramic faces • Viton/FKM elastomers

    Why choose 200CV:

    • Viton/FKM upgrade handles higher chlorine, heat, and chemicals better than Buna

    • T-16 footprint for quick, drop-in replacement

    Upgrades / Variations (same footprint)

    • 200c — Basic (Buna)

    • 516 — Premium carbon face (Buna)

    • 3867 — Premium + Viton

    • 200CVSS — Silicon Carbide / Silicon Carbide / Viton

    Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.

    Looking for more? Shop Pump Repair Kits, Parts & Accessories, and Pre-Cut Gaskets.

    Have questions? Check out our Pool/Spa Small Pump Guide or call us anytime—we’re here to help.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    View Product
  • ps-100 ps-200 ps-201 pump seal sic/sic/vit

    200cvss

    200cvss

    Mechanical Seal 200CVSS — Type 166 / T-16 (5/8″) | PS-200v-SC-SC Equivalent

    Equal to industry standard 200CVSS / PS-200v-SC-SC.
    Direct-fit Type 166 / T-16 single-spring seal for pool/spa and small-pump applications—engineered with Silicon Carbide faces and Viton/FKM elastomers for added chemical and temperature resistance.

    At-a-glance specs: 5/8″ shaft • 1.25″ × 0.406″ cup seat • Silicon Carbide / Silicon Carbide faces • Viton elastomers

    Why choose 200CVSS:

    • SiC/SiC faces deliver excellent wear and heat resistance

    • Viton® tolerates higher chlorine, heat, and chemicals than Buna

    • T-16 footprint for quick, drop-in replacement

    Variations (same footprint)

    • 200c — Basic (Buna)

    • 516 — Premium carbon face (Buna)

    • 3867 — Premium + Viton

    • 200cv — Molded carbon

    Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.

    Looking for more? Shop Pump Repair Kits, Parts & Accessories, and Pre-Cut Gaskets.

    Have questions? Check out our Pool/Spa Small Pump Guide or call us anytime—we’re here to help.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    View Product
  • N22 pump seal ps-2016, ps-4518 ps-188 ps-754 ps-204 ps-361 ps-354 ps-305 ps-745 ps-205 ps-523 ps-479 ps-537 ps-323

    2016c

    2016c

    Item #N/A

    Single Spring Mechanical Seal 2016c | PS-2016 Equivalent

    Equal to industry standard number 2016 / PS-2016

    Shaft size: 5/8″ single spring mechanical seal with 1.250″ x .405″ cup seat, 1.063″ rotary OD, 1.375″ working length

    Crimped rotary head type N-22. Utilized in centrifugal pumps, mixers, rotating equipment, and further apparatus.

    Interchange / replacements:

    • Equivalent to Pac-Seal T-21 (long working length) and Burgmann MG9

    • Can replace Type E and Type 1 in many applications (confirm dimensions)

    Design & construction:

    • Electro-polished 304 stainless steel metal parts

    • Elastomeric bellows for stable sealing and easy installation

    • Independent of shaft rotation

    Material options (select above):

    • CAR/CER/NIT — Carbon/Ceramic, Nitrile elastomers

    • CAR/CER/VIT — Carbon/Ceramic, Viton/FKM elastomers

    • SIC/SIC/VIT — Silicon Carbide/Silicon Carbide, Viton/FKM elastomers

    Please click “specifications” below for OEM numbers and Pump Nameplate Data

    Have questions? Check out our Single Spring Seal Guide  or call us anytime—we’re here to help.

    Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.

    Looking for more? Shop Pump Repair Kits, Parts & Accessories, and  Gaskets.

    View Product
  • ps-100 , ps-200 , ps-201 mechanical seal- buy now!

    201c

    201c

    Mechanical Seal 201c — Type 166 (3/4″) | PS-201 Equivalent

    Equal to industry standard 201. Direct-fit replacement for PS-201 single-spring seals in pool/spa and small-pump applications.

    At-a-glance specs: 3/4″ shaft • 1.375″ × 0.406″ cup seat • Type 166 • Molded carbon/ceramic faces • Buna-N elastomers

    Why choose 201 (PS-201)
    Reliable everyday build for clean-water, standard-chemistry systems with quick, drop-in fit.

    Upgrades / Variations (same footprint)

    • 851 — Premium carbon face

    • 3868 — Premium + Viton

    • 201CV — Molded carbon

    • 201CVSS — Silicon Carbide / Silicon Carbide / Viton®

    Have questions? Check out our Pool/Spa Small Pump Guide or call us anytime—we’re here to help.

    Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    View Product
  • ps-100 , ps-200 , ps-201 mechanical seal- buy now!

    201cv

    201cv

    Mechanical Seal 201cv — Type 166 / T-16 (3/4″) | PS-201V-CMS Equivalent

    Equal to industry standard 201cv / PS-201V-CMS.
    Direct-fit Type 166 / T-16 single-spring seal for pool/spa and small-pump applications—built with molded carbon/ceramic faces and Viton® elastomers for added chemical and temperature resistance.

    At-a-glance specs: 3/4″ shaft • 1.375″ × 0.406″ cup seat • Molded carbon/ceramic faces • Viton/FKM elastomers

    Why choose this 201cv (PS-201v-cms):

    • Viton handles higher chlorine, heat, and chemicals better than Buna

    • Proven T-16 footprint for quick, drop-in replacement

    Upgrades / Alternatives (same footprint)

    • 201c — Basic (Buna)

    •  851  — Premium carbon face (Buna)

    • 3868 — Premium + Viton (machined carbon)

    • 201cvss — Silicon Carbide / Silicon Carbide / Viton

    Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.

    Looking for more? Shop Pump Repair Kits, Parts & Accessories, and Pre-Cut Gaskets.

    Have questions? Check out our Pool/Spa Small Pump Guide or call us anytime—we’re here to help.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    View Product
  • ps-100 ps-200 ps-201 pump seal sic/sic/vit

    201cvss

    201cvss

    Mechanical Seal 201CVSS — Type 166 / T-16 (3/4″) | PS-201V-SC-SC Equivalent

    Equal to industry standard 201CVSS / PS-201V-SC-SC.
    Direct-fit Type 166 / T-16 single-spring seal for pool/spa and small-pump applications—engineered with hard faces and chemical-resistant elastomers for longer service life.

    At-a-glance spec: 3/4″ shaft • 1.375″ × 0.406″ cup seat • Silicon Carbide / Silicon Carbide faces • Viton/FKM elastomers

    Why choose 201CVSS:

    • SiC/SiC faces provide excellent wear and heat resistance

    • Viton handles higher chlorine, heat, and chemicals better than Buna

    • T-16 footprint for quick, drop-in replacement

    Variations (same footprint)

    • 201c — Basic (Buna)

    • 851 — Premium carbon face (Buna)

    • 3868— Premium + Viton

    • 201cv — Molded carbon

    Explore our full lineup of Single Spring Seals—PS replacements, pool/spa seals, and our SPS line.

    Looking for more? Shop Pump Repair Kits, Parts & Accessories, and Pre-Cut Gaskets.

    Have questions? Check out our Pool/Spa Small Pump Guide or call us anytime—we’re here to help.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    View Product

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