1000 Mechanical Seal (PS-1000) — 5/8″Pentair IntelliFlo, WhisperFlo & Polaris PB4-60 Pool Pumps

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

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

Fits: Pentair IntelliFlo®, WhisperFlo® and Ultra-Flo (071734S), the Polaris PB4-60 booster pump, Jandy, Sta-Rite and American Products Eagle and Maxim pool pumps, plus Astral Pool, Doughboy, Gecko and Acura spa systems. Pentair IntelliFloXF takes the PS-201; the Polaris PB4-60Q takes the PS-3890.

Same seal, same size, same fit — what changes is the material and how it’s built. All five seals below are the PS-1000 for a 5/8″ shaft, and all five fit the same pumps. They differ in two ways. The build: a molded carbon face or a premium carbon face machined from solid stock. The materials: a ceramic or silicon carbide seat, and Nitrile or Viton rubber. Pick the one that suits your water.

Seal	Material	Best For This Water
1000	Molded carbon face, ceramic seat, Nitrile rubber	Normal chlorine, normal temperature, clear water. The standard build for a home pool or spa.
1000cv	Molded carbon face, ceramic seat, Viton rubber	Saltwater or higher chlorine, and warmer water. Viton holds up where standard Nitrile hardens and cracks.
961	Machined premium carbon face, ceramic seat, Nitrile rubber	Saltwater pools with a chlorine generator, commercial pools, or any pump that runs most of the day.
3865	Machined premium carbon face, ceramic seat, Viton rubber	High chlorine and hot water — heated spas, therapy pools, heavy commercial duty.
1000cvss	Silicon carbide face and seat, Viton rubber	Sandy, dusty or gritty water, or any pump where seals keep failing early. The hardest faces we offer.

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

1000CV Mechanical Seal (PS-1000V-CMS) — 5/8″Pentair IntelliFlo, WhisperFlo & Polaris PB4-60 Pool Pumps

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

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

Fits: Pentair IntelliFlo®, WhisperFlo® and Ultra-Flo (071734S), the Polaris PB4-60 booster pump, Jandy, Sta-Rite and American Products Eagle and Maxim pool pumps, plus Astral Pool, Doughboy, Gecko and Acura spa systems. Pentair IntelliFloXF takes the PS-201; the Polaris PB4-60Q takes the PS-3890.

Same seal, same size, same fit — what changes is the material and how it’s built. All five seals below are the PS-1000 for a 5/8″ shaft, and all five fit the same pumps. They differ in two ways. The build: a molded carbon face or a premium carbon face machined from solid stock. The materials: a ceramic or silicon carbide seat, and Nitrile or Viton rubber. Pick the one that suits your water.

Seal	Material	Best For This Water
1000	Molded carbon face, ceramic seat, Nitrile rubber	Normal chlorine, normal temperature, clear water. The standard build for a home pool or spa.
1000cv	Molded carbon face, ceramic seat, Viton rubber	Saltwater or higher chlorine, and warmer water. Viton holds up where standard Nitrile hardens and cracks.
961	Machined premium carbon face, ceramic seat, Nitrile rubber	Saltwater pools with a chlorine generator, commercial pools, or any pump that runs most of the day.
3865	Machined premium carbon face, ceramic seat, Viton rubber	High chlorine and hot water — heated spas, therapy pools, heavy commercial duty.
1000cvss	Silicon carbide face and seat, Viton rubber	Sandy, dusty or gritty water, or any pump where seals keep failing early. The hardest faces we offer.

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	.25 lbs
Dimensions	1.5 × 1.5 × 1.25 in

1000CVSS Mechanical Seal (PS-1000VSC) — 5/8″Pentair IntelliFlo, WhisperFlo & Polaris PB4-60 Pool Pumps

Mechanical Seal 1000CVSS — T-75 (5/8″)| PS-1000VSC

Equal to industry standard 1000VSC / PS-1000VSC.
Direct-fit T-75 single spring seal for pool/spa and small-pump applications—built for long life with hard faces and chemical-resistant elastomers.

At-a-glance specs: 5/8″ shaft • 1.250″ × 0.406″ cup seat • Silicon Carbide / Silicon Carbide faces • Viton elastomers

Fits: Pentair IntelliFlo®, WhisperFlo® and Ultra-Flo (071734S), the Polaris PB4-60 booster pump, Jandy, Sta-Rite and American Products Eagle and Maxim pool pumps, plus Astral Pool, Doughboy, Gecko and Acura spa systems. Pentair IntelliFloXF takes the PS-201; the Polaris PB4-60Q takes the PS-3890.

Same seal, same size, same fit — what changes is the material and how it’s built. All five seals below are the PS-1000 for a 5/8″ shaft, and all five fit the same pumps. They differ in two ways. The build: a molded carbon face or a premium carbon face machined from solid stock. The materials: a ceramic or silicon carbide seat, and Nitrile or Viton rubber. Pick the one that suits your water.

Seal	Material	Best For This Water
1000	Molded carbon face, ceramic seat, Nitrile rubber	Normal chlorine, normal temperature, clear water. The standard build for a home pool or spa.
1000cv	Molded carbon face, ceramic seat, Viton rubber	Saltwater or higher chlorine, and warmer water. Viton holds up where standard Nitrile hardens and cracks.
961	Machined premium carbon face, ceramic seat, Nitrile rubber	Saltwater pools with a chlorine generator, commercial pools, or any pump that runs most of the day.
3865	Machined premium carbon face, ceramic seat, Viton rubber	High chlorine and hot water — heated spas, therapy pools, heavy commercial duty.
1000cvss	Silicon carbide face and seat, Viton rubber	Sandy, dusty or gritty water, or any pump where seals keep failing early. The hardest faces we offer.

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	.25 lbs
Dimensions	1.5 × 1.5 × 1.25 in

ps-100 , ps-200 , ps-201 mechanical seal

100c Mechanical Seal (PS-100) — 5/8″Sta-Rite & Pentair Dura-Glas, Max-E-Glas Pool Pumps

Mechanical Seal 100c — Type 166 (5/8″)| PS-100 Equivalent

Equivalent to industry standard 100 / PS-100.
Direct-fit Type 166 mechanical seal for Sta-Rite/Pentair J Series pumps. Built with molded carbon / ceramic faces and Buna-N elastomers for reliable, everyday pool/spa service.

At-a-glance: 5/8″ shaft • 1.187″ × 0.343″ cup seat • Molded carbon/ceramic, Buna-N (Type 6W)

Fitment: J Series Shaft Seal — 5/8″ (Buna-N Type 6W replacement for Sta-Rite/Pentair J Series)

Cross-references (identical to)
U10993SS, 173510102, AS100, Anthony 04547, East Side P28322, Purex P28280, 071733, Sta-Rite U109-6A, U109093, U10993SS, 173510102, Sears 42G2377W, Swimquip P61

Technical Specifications:

Product Category: Parts

Poolweb Item #: U109-6B

Cross Reference #: APCAS100, U109-6A

Same seal, same size, same fit — what changes is the material and how it’s built. All five seals below are the PS-100 for a 5/8″ shaft, and all five fit the same pumps. They differ in two ways. The build: a molded carbon face or a premium carbon face machined from solid stock. The materials: a ceramic or silicon carbide seat, and Nitrile or Viton rubber. Pick the one that suits your water.

Seal	Material	Best For This Water
100c — this seal	Molded carbon face, ceramic seat, Nitrile rubber	Normal chlorine, normal temperature, clear water. The standard build for a home pool or spa.
100cv	Molded carbon face, ceramic seat, Viton rubber	Saltwater or higher chlorine, and warmer water. Viton holds up where standard Nitrile hardens and cracks.
957	Machined premium carbon face, ceramic seat, Nitrile rubber	Saltwater pools with a chlorine generator, commercial pools, or any pump that runs most of the day.
3866	Machined premium carbon face, ceramic seat, Viton rubber	High chlorine and hot water — heated spas, therapy pools, heavy commercial duty.
100cvss	Silicon carbide face and seat, Viton rubber	Sandy, dusty or gritty water, or any pump where seals keep failing early. The hardest faces we offer.

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 more OEM numbers and Pump Nameplate Data

Weight	.25 lbs
Dimensions	.75 × .75 × 1.25 in

100CV Mechanical Seal (PS-100V-CMS) — 5/8″Fits Sta-Rite & Pentair Dura-Glas, Max-E-Glas Pool Pumps

Mechanical Seal 100CV — Type 166 / T-16 (5/8″) | PS-100V-CMS

Equal to industry standard 100CV / PS-100V-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 • 1.187″ × 0.343″ cup seat • Molded carbon/ceramic faces • Viton/FKM elastomers

Same seal, same size, same fit — what changes is the material and how it’s built. All five seals below are the PS-100 for a 5/8″ shaft, and all five fit the same pumps. They differ in two ways. The build: a molded carbon face or a premium carbon face machined from solid stock. The materials: a ceramic or silicon carbide seat, and Nitrile or Viton rubber. Pick the one that suits your water.

Seal	Material	Best For This Water
100c	Molded carbon face, ceramic seat, Nitrile rubber	Normal chlorine, normal temperature, clear water. The standard build for a home pool or spa.
100cv	Molded carbon face, ceramic seat, Viton rubber	Saltwater or higher chlorine, and warmer water. Viton holds up where standard Nitrile hardens and cracks.
957	Machined premium carbon face, ceramic seat, Nitrile rubber	Saltwater pools with a chlorine generator, commercial pools, or any pump that runs most of the day.
3866	Machined premium carbon face, ceramic seat, Viton rubber	High chlorine and hot water — heated spas, therapy pools, heavy commercial duty.
100cvss	Silicon carbide face and seat, Viton rubber	Sandy, dusty or gritty water, or any pump where seals keep failing early. The hardest faces we offer.

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

100CVSS Mechanical Seal (PS-100VSC) — 5/8″Sta-Rite & Pentair Dura-Glas, Max-E-Glas Pool Pumps

Mechanical Seal 100CVSS — Type 166 / T-16 (5/8″) | PS-100-SC-SC

Equal to industry standard 100CVSC / PS-100-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 specs: 5/8″ shaft • 1.187″ × 0.343″ cup seat • Silicon Carbide / Silicon Carbide faces • Viton elastomers

Same seal, same size, same fit — what changes is the material and how it’s built. All five seals below are the PS-100 for a 5/8″ shaft, and all five fit the same pumps. They differ in two ways. The build: a molded carbon face or a premium carbon face machined from solid stock. The materials: a ceramic or silicon carbide seat, and Nitrile or Viton rubber. Pick the one that suits your water.

Seal	Material	Best For This Water
100c	Molded carbon face, ceramic seat, Nitrile rubber	Normal chlorine, normal temperature, clear water. The standard build for a home pool or spa.
100cv	Molded carbon face, ceramic seat, Viton rubber	Saltwater or higher chlorine, and warmer water. Viton holds up where standard Nitrile hardens and cracks.
957	Machined premium carbon face, ceramic seat, Nitrile rubber	Saltwater pools with a chlorine generator, commercial pools, or any pump that runs most of the day.
3866	Machined premium carbon face, ceramic seat, Viton rubber	High chlorine and hot water — heated spas, therapy pools, heavy commercial duty.
100cvss	Silicon carbide face and seat, Viton rubber	Sandy, dusty or gritty water, or any pump where seals keep failing early. The hardest faces we offer.

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

1155c Mechanical Seal (PS-1155)5/8″

Item #N/A

Mechanical Seal 1155C — Type 166

1155c Type 166 single spring mechanical seal, PS-1155 equivalent. Fits 5/8″ shaft with 1.187″× 0.288″/0.296″ cup seat and 1.063″ rotary OD / 0.875″ working length (Type 166 footprint).

At-a-glance

Footprint: Type 166 (single spring)
Cup seat: 1.187″ × 0.288″ / 0.296″
Rotary OD / Working length: 1.063″ / 0.875″

Replaces common styles
Type 16, G, A, 6, AV, 2100 (drop-in crossover).

Material options (choose above)

CAR/CER/NIT — Carbon/Ceramic, Nitrile
CAR/CER/VIT — Carbon/Ceramic, Viton
CAR/SIC/VIT — Carbon/Silicon Carbide, Viton
SIC/SIC/VIT — Silicon Carbide/Silicon Carbide, Viton

Build details
Our Type 166 configuration uses a full metal retainer, positive-drive crimped rotary, and full rubber bellows for strong drive and sealing. Carbon-face versions use a true carbon face (not plastic/phenolic) for longer service life.

OEM / Cross-reference

OEM numbers: 15529, 10K55 , 10K46 , 10K62, 10K92, 10k87, 10k88
Brands (examples): Goulds Pumps, Wayne Combustion Systems (Series J and S nameplates)

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 Pre-Cut Gaskets.

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

Weight	.5 lbs
Dimensions	1 × 1 × 1.5 in

1679c Mechanical Seal (PS-1679)2-1/4″

Item #N/A

The 1679c single spring mechanical seal is Seal House equivalent to the PS-1679 / 1679 — built to OEM-equivalent standards or higher. A Type C crimped-head seal (John Crane Type 21) for a 2-1/4 in. shaft, used in ABS, Crane-Deming, Goulds, Hydromatic, Weir and Yeomans pumps.

Specifications

Shaft Size2-1/4 in.57.15 mm

Head TypeType CJohn Crane 21 · N-11

Head OD3.125 in.79.38 mm

Operating Height1.688 in.working length

Seat TypeCup mount

Seat OD3.125 in.

Seat Thickness0.562 in.

Metal Parts304 stainlesselectro-polished

Single spring · elastomeric bellows · non-directional, runs either rotation · carbon or silicon carbide faces, Nitrile or Viton elastomersChoose Your Seal Material3 seal materials available. Same seal, same dimensions — only the faces and rubber parts change. Find what your pump runs, then choose that option from the drop-down menu above.

Seal Material	What’s in it	Choose this if
Standard – Carbon/Ceramic/NitrileCAR/CER/NIT · BCFJF	Carbon face, ceramic seat, Nitrile rubberMax 225°F	Clean water at neutral pH — HVAC, water transfer, pool and general-service pumps. This is the standard build.
Upgrade – Carbon/Ceramic/VitonCAR/CER/VIT · VCFJF	Carbon face, ceramic seat, Viton rubberMax 400°F	Your pump runs hot, or handles glycol, oils, fuels, bleach or other chemicals that break down standard Nitrile.
Top gradeHeavy Duty – Silicon Carbide/VitonSIC/SIC/VIT · VLFLF	Silicon carbide face and seat, Viton rubberMax 400°F	Gritty or dirty water, wastewater and slurry, or any pump where seals keep wearing out early. The hardest faces we offer.

Cross ReferencesFind your pump brand, then match the number on your old seal or nameplate.

Pump / Motor Brand	OEM Part No.	Nameplate & Notes
ABS USA (Sulzer)	11116015
Baldor-Reliance (ABB Group)	64262-12E	Motor frame 250
Crane-Deming	0030892	Division of Crane Pumps & Systems
Crane Pumps & Systems	0030892
Goulds Pumps	9152111001
Weir Specialty Pumps	52600
Yeomans Chicago (Grundfos)	C3-2-61
Hydromatic Pump Company	080730031	Viton Order the Viton option

Seal House USA provides aftermarket replacement parts. The 1679c is equal to — not manufactured by — the listed OEMs or US Seal Mfg. Any OEM and PS names or numbers are used strictly for cross-reference. We are an independent supplier.Other Sizes in the N LineCheck the head type as well as the shaft — a Type E head is a different seal design.

Seal	Shaft	Head	Head OD	Op. Height
267c	2 in.	Type C	2.875	1.500
537c	2-1/8 in.	Type E	2.812	2.375
844c	2-1/8 in.	Type C	3.000	1.687
1679c	2-1/4 in.	Type C	3.125	1.688
323c	2-1/4 in.	Type E	2.938	2.375
268c	2-3/8 in.	Type C	3.250	1.812
2120c	2-1/2 in.	Type C	3.515	1.813

See all N Line single spring seals · How to Replace a Mechanical Pump Seal · Single Spring Seal Guide

Other part numbers & search terms

Part number: PS-1679 = PS1679 = PS 1679 = 1679 = 1679c = 1679 C = 1679-c
Size: 2-1/4 mechanical seal = 2.25 mechanical seal = 57.15 mm seal · 3.125 x 0.562 seat = 3-1/8 x 9/16 seat · 1.688 working length = 1.688 operating height
Head type: Type C seal = John Crane Type 21 = JC 21 = C21 seal · N-11 seal = N11 seal · Type D / John Crane 2 replacement (with spring change)
Materials: BCFJF carbon ceramic nitrile · VCFJF carbon ceramic Viton / FKM · VLFLF SiC / SiC Viton / FKM
Fit note: the N-11 head has a reduced OD for ANSI seal chambers and fits straight box bores where many seals cannot. Max shaft size for this design is 2.25 in.

Not sure which seal or material you need?Call or text a photo of your pump nameplate — no purchase required.561-414-1046Engineered to fit. Built to last.

Weight	.9 lbs
Dimensions	3.25 × 3.25 × 2.5 in

177c Mechanical Seal (PS-177)1-3/8″

Item #N/A

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

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).

Same seal, same dimensions — only the seal faces and rubber parts change. Most clean-water pumps take the Standard seal. Step up to an Upgrade if your pump runs hot, handles chemicals, or pumps gritty water.

Seal Material	Max Temp	Choose This If
3 seal materials available — choose yours from the drop-down menu above.
Standard – Carbon/Ceramic/NitrileCAR/CER/NIT	200°F	Clean water at neutral pH — HVAC, water transfer, pool and general-service pumps. This is the standard build.
Upgrade – Carbon/Ceramic/VitonCAR/CER/VIT	450°F	Your pump runs hot, or handles glycol, oils, fuels, bleach or other chemicals that break down standard Nitrile.
Upgrade – Silicon Carbide/VitonSIC/SIC/VIT	450°F	Gritty or dirty water, wastewater and slurry, or any pump where seals keep wearing out early. Hardest faces we offer.

Still not sure? Text a photo of your pump nameplate to 561-414-1046 and tell us what the pump runs — we’ll tell you which seal material to order. No purchase required.

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