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1. Mechanical Seals

  • PS replacement mechanical seal

    185c Mechanical Seal (PS-185) – 1-1/4″

    185c Mechanical Seal (PS-185) – 1-1/4″

    Item #N/A

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

    185c single spring mechanical seal, PS-185 / 185 equivalent. Fits 1-1/4″ shaft with 1.875″× 0.437″ seat and Type N-11 (Type C/21) rotary head.

    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

    Rebuilding a Berkeley TP or ZP series? Check out our Berkeley kits and save the sourcing.

    This S32014 seal 1-1/4″ (TPMS / TPLS / TPHS / ZP) is included in the Berkeley Pump Repair Kits — seal, sleeve, and volute gasket matched to the same pump service, shipped together. 

    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.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    Weight .35 lbs
    Dimensions 2.25 × 2.25 × 1.75 in
  • N22 PS replacement mechanical seal

    188c Mechanical Seal (PS-188) – 7/8″

    188c Mechanical Seal (PS-188) – 7/8″

    Item #N/A

    Single Spring Mechanical Seal 188c | PS-188 Equivalent

    188c single spring mechanical seal, PS-188 / 188 equivalent. Fits 7/8″ shaft with 1.500″×.405″ seat and Type N-22 rotary head.

    Shaft Size: 7/8″  Seat Cup: 1.500″ x  o.405″ Rotary OD: 1.315″  Working Length: 1.437″

    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

    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.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    Weight .35 lbs
    Dimensions 2 × 2 × 2 in
  • ps-100 , ps-200 , ps-201 mechanical seal

    200c Mechanical Seal (PS-200) — 5/8″

    200c Mechanical Seal (PS-200) — 5/8″

    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
    Weight .25 lbs
    Dimensions 1.5 × 1.5 × 1.25 in
  • ps-100 , ps-200 , ps-201 mechanical seal

    200CV Mechanical Seal (PS-200V-CMS) — 5/8″

    200CV Mechanical Seal (PS-200V-CMS) — 5/8″

    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
    Weight .25 lbs
    Dimensions 1.5 × 1.5 × 1.25 in
  • ps-100 ps-200 ps-201 pump seal sic/sic/vit

    200CVSS Mechanical Seal (PS-200V-SC-SC) — 5/8″

    200CVSS Mechanical Seal (PS-200V-SC-SC) — 5/8″

    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 especially for abrasive & chemical-rich environments

    • 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
    Weight .25 lbs
    Dimensions 1.5 × 1.5 × 1.25 in
  • N22 PS replacement mechanical seal

    2016C Mechanical Seal (PS-2016) – 5/8″

    2016C Mechanical Seal (PS-2016) – 5/8″

    Item #N/A

    Single Spring Mechanical Seal 2016c | PS-2016 Equivalent

    2016c single spring mechanical seal, PS-2016 / 2016 equivalent. Fits 5/8″ shaft with 1.250″×.405″ seat and Type N-22 rotary head.

    Shaft size: 5/8″ Seat: 1.250″ x 0.405″ cup Rotary OD: 1.063″ Working Length: 1.375″

    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

    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.

    Please click “specifications” below for OEM numbers and Pump Nameplate Data
    Weight .35 lbs
    Dimensions 1.75 × 1.75 × 2 in
  • ps-100 , ps-200 , ps-201 mechanical seal

    201C Mechanical Seal (PS-201) — 3/4″

    201C Mechanical Seal (PS-201) — 3/4″

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

    Equal to industry standard 201 / PS-201. Direct-fit replacement for PS-201 single-spring seals in pool/spa and small-pump applications. Engineered with molded carbon/ceramic faces and Buna-N elastomers.

    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
    Weight .25 lbs
    Dimensions 1 × 1 × 1.25 in
  • ps-100 , ps-200 , ps-201 mechanical seal

    201CV Mechanical Seal (PS-201V-CMS) — 3/4″

    201CV Mechanical Seal (PS-201V-CMS) — 3/4″

    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
    Weight .25 lbs
    Dimensions 1.5 × 1.5 × 1.25 in
  • ps-100 ps-200 ps-201 pump seal sic/sic/vit

    201CVSS Mechanical Seal (PS-201V-SC-SC) — 3/4″

    201CVSS Mechanical Seal (PS-201V-SC-SC) — 3/4″

    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 in abrasive and chemical rich environments

    • 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
    Weight .25 lbs
    Dimensions 1.5 × 1.5 × 1.25 in