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Mechanical pump seal

  • ps-1000 ,ps-961 ps-3865 mechanical seal

    1000 Mechanical Seal (PS-1000) — 5/8″

    1000 Mechanical Seal (PS-1000) — 5/8″

    Mechanical Seal 1000 — Type 6 (5/8″) | PS-1000 Equivalent

    Equal to industry standard 1000 / PS-1000.
    Direct-fit Type 6 single-spring seal for pool/spa and small-pump applications—built with molded carbon/ceramic faces and Buna-N elastomers for reliable everyday service.

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

    Why choose 1000 (PS-1000)

    • Proven Type 6 footprint for quick replacement

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

    Upgrades / Variations (same footprint)

    • 961 — Premium carbon face

    • 3865 — Premium + Viton

    • 1000CV — Molded carbon

    • 1000CVSS — 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 1 lbs
    Dimensions 8 × 6 × 4 in
    View Product
  • ps-1000 ,ps-961 ps-3865 mechanical seal

    1000CV Mechanical Seal (PS-1000V-CMS) — 5/8″

    1000CV Mechanical Seal (PS-1000V-CMS) — 5/8″

    Mechanical Seal 1000CV — T-75 / T-6A (5/8″) | PS-1000V-CMS Equivalent

    Equal to industry standard 1000V-CMS / PS-1000V-CMS.
    Direct-fit T-75 / T-6A 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: 5/8″ shaft • 1.25″ × 0.406″ cup seat • Carbon/Ceramic faces • Viton elastomers • T-75 / T-6A footprint

    Why choose 1000CV:

    • Viton upgrade handles higher chlorine/heat better than Buna

    • Drop-in replacement for fast, reliable service

    Upgrades / Variations (same footprint)

    • 1000 — Basic (Buna)

    • 961 — Premium carbon face (Buna)

    • 3865 — Premium + Viton

    • 1000cvss — 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 for OEM numbers and Nameplate Data
    Weight 1 lbs
    Dimensions 8 × 6 × 4 in
    View Product
  • Type n11, C, 1 Mechanical pump Seal - buy now

    1679c Mechanical Seal (PS-1679) – 2-1/4″

    1679c Mechanical Seal (PS-1679) – 2-1/4″

    Item #N/A

    Single Spring Mechanical Seal 1679C — 2-1/4″ | PS-1679 Equivalent

    1679c single spring mechanical seal, PS-1679 / 1679 equivalent. Fits 2-1/4″ shaft with 3.125″×0.562″ seat and Type N-11 (C/21) rotary head.

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

    Key specs: Shaft size: 2-1/4″ single spring seal • Seat: 3.125″ × 0.562″ cup • Rotary OD: 3.150″ • Working length: 1.687″

    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

    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 1 lbs
    Dimensions 8 × 6 × 4 in
    View Product
  • Type n11, C, 1 Mechanical pump Seal - buy now

    177C Mechanical Seal (PS-177) – 1-3/8″

    177C Mechanical Seal (PS-177) – 1-3/8″

    Item #N/A

    Single Spring Mechanical Seal 177C — 1-3/8″ | PS-177 Equivalent

    177c single spring mechanical seal, PS-177 / 177 equivalent. Fits 1-3/8″ shaft with 2.000″×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: 1-3/8″ single spring seal • Seat: 2.000″ x 0.437″ cup • Rotary OD: 1.941″ • Working length: 1.125″

    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

    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 1 lbs
    Dimensions 8 × 6 × 4 in
    View Product
  • Type n11, C, 1 Mechanical pump Seal - buy now

    185c Mechanical Seal (PS-185) – 1-1/2″

    185c Mechanical Seal (PS-185) – 1-1/2″

    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

    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 1 lbs
    Dimensions 8 × 6 × 4 in
    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 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 1 lbs
    Dimensions 8 × 6 × 4 in
    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 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 1 lbs
    Dimensions 8 × 6 × 4 in
    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

    204C Mechanical Seal (PS-204) – 1-1/8″

    204C Mechanical Seal (PS-204) – 1-1/8″

    Item #N/A

    Single Spring Mechanical Seal 204c | PS-204 Equivalent

    204c single spring mechanical seal, PS-204 / 204 equivalent. Fits 1-1/8″ shaft with 1.750″×.437″ seat and Type N-22 rotary head.

    Shaft size: 1-1/8″ Seat: 1.750″ x .437″ cup, Rotary OD: 1.650″, Working Length: 1.687″

    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 1 lbs
    Dimensions 8 × 6 × 4 in
    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

    205C Mechanical Seal (PS-205) – 1-3/4″

    205C Mechanical Seal (PS-205) – 1-3/4″

    Item #N/A

    Single Spring Mechanical Seal 205c | PS-205 Equivalent

    205c single spring mechanical seal, PS-205 / 205 equivalent. Fits 1-3/4″ shaft with 2.500″×.500″ seat and Type N-22 rotary head.

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

    Key specs: Shaft size: 1-3/4″ single spring seal • Seat: 2.500″ x .500″ • Rotary OD: 2.402″ • Working length: 2.000″

    Design & construction:
    Crimped rotary head (Type N-22)—equivalent to Pac-Seal T-21 (long working length) and Burgmann MG9, can replace seal type E & 1 seal heads. Electro-polished 304 stainless steel metal parts. Elastomeric bellows. Non-directional (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

    Seal Model Product Line Replaces Features & Focus
    205C N Line PS-514 Easy installation & broad compatibility
    SPS-205 SPS Line PS-514 Premium build for longevity & like for like replacement.

    Both PS replacements? Which should I choose? Check out more on our Seal House Seal Guide

    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 1 lbs
    Dimensions 8 × 6 × 4 in
    View Product