Pool & Spa Pump Parts - Page 2 of 4

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

201c Mechanical Seal (PS-201) — 3/4″Hayward Super Pump & Pentair IntelliFloXF Pool Pumps

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

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

Fits: Hayward Super Pump®, Super Pump II, Super Pump VS and the original Max-Flo (SPX1600Z2), Pentair IntelliFloXF® and SuperFlo® VST (17351-0101S), Sta-Rite Dura-Glas® II, Max-E-Glas™ II, Max-E-Pro® and Dyna-Pro®, plus Pac-Fab, American Products, Purex, Swimquip and Jacuzzi pool and spa pumps. The standard Pentair IntelliFlo takes the PS-1000; Pentair SuperFlo / SuperFlo VS and Hayward Max-Flo II take the PS-200.

Same seal, same size, same fit — what changes is the material and how it’s built. All five seals below are the PS-201 for a 3/4″ 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
201c	Molded carbon face, ceramic seat, Nitrile rubber	Normal chlorine, normal temperature, clear water. The standard build for a home pool or spa.
201cv	Molded carbon face, ceramic seat, Viton rubber	Saltwater or higher chlorine, and warmer water. Viton holds up where standard Nitrile hardens and cracks.
851	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.
3868	Machined premium carbon face, ceramic seat, Viton rubber	High chlorine and hot water — heated spas, therapy pools, heavy commercial duty.
201cvss	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.

Rebuilding a Hayward Super Pump or Super II?Get this 201c seal in a complete kit with both gaskets — choose Standard – Carbon/Ceramic/Nitrile (201c) from the kit drop-down.

Doing the job yourself? Read How to Replace a Mechanical Pump Seal.

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

Weight	.25 lbs
Dimensions	1 × 1 × 1.25 in

201cv Mechanical Seal (PS-201V-CMS) — 3/4″Hayward Super Pump & Pentair IntelliFloXF Pool Pumps

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

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

Fits: Hayward Super Pump®, Super Pump II, Super Pump VS and the original Max-Flo (SPX1600Z2), Pentair IntelliFloXF® and SuperFlo® VST (17351-0101S), Sta-Rite Dura-Glas® II, Max-E-Glas™ II, Max-E-Pro® and Dyna-Pro®, plus Pac-Fab, American Products, Purex, Swimquip and Jacuzzi pool and spa pumps. The standard Pentair IntelliFlo takes the PS-1000; Pentair SuperFlo / SuperFlo VS and Hayward Max-Flo II take the PS-200.

Same seal, same size, same fit — what changes is the material and how it’s built. All five seals below are the PS-201 for a 3/4″ 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
201c	Molded carbon face, ceramic seat, Nitrile rubber	Normal chlorine, normal temperature, clear water. The standard build for a home pool or spa.
201cv	Molded carbon face, ceramic seat, Viton rubber	Saltwater or higher chlorine, and warmer water. Viton holds up where standard Nitrile hardens and cracks.
851	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.
3868	Machined premium carbon face, ceramic seat, Viton rubber	High chlorine and hot water — heated spas, therapy pools, heavy commercial duty.
201cvss	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.

Rebuilding a Hayward Super Pump or Super II?Get this 201cv seal in a complete kit with both gaskets — choose Upgrade – Carbon/Ceramic/Viton (201cv) from the kit drop-down.

Doing the job yourself? Read How to Replace a Mechanical Pump Seal.

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″Hayward Super Pump & Pentair IntelliFloXF Pool Pumps

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

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

Fits: Hayward Super Pump®, Super Pump II, Super Pump VS and the original Max-Flo (SPX1600Z2), Pentair IntelliFloXF® and SuperFlo® VST (17351-0101S), Sta-Rite Dura-Glas® II, Max-E-Glas™ II, Max-E-Pro® and Dyna-Pro®, plus Pac-Fab, American Products, Purex, Swimquip and Jacuzzi pool and spa pumps. The standard Pentair IntelliFlo takes the PS-1000; Pentair SuperFlo / SuperFlo VS and Hayward Max-Flo II take the PS-200.

Same seal, same size, same fit — what changes is the material and how it’s built. All five seals below are the PS-201 for a 3/4″ 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
201c	Molded carbon face, ceramic seat, Nitrile rubber	Normal chlorine, normal temperature, clear water. The standard build for a home pool or spa.
201cv	Molded carbon face, ceramic seat, Viton rubber	Saltwater or higher chlorine, and warmer water. Viton holds up where standard Nitrile hardens and cracks.
851	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.
3868	Machined premium carbon face, ceramic seat, Viton rubber	High chlorine and hot water — heated spas, therapy pools, heavy commercial duty.
201cvss	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.

Rebuilding a Hayward Super Pump or Super II?Get this 201cvss seal in a complete kit with both gaskets — choose Heavy Duty – Silicon Carbide/Viton (201cvss) from the kit drop-down.

Doing the job yourself? Read How to Replace a Mechanical Pump Seal.

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

Weight	.25 lbs
Dimensions	1.5 × 1.5 × 1.25 in

PS-2161 mechanical seal, 2161, 5/8 inch shaft, Type 6A, carbon and ceramic faces, Buna-N elastomers

2161 Mechanical Seal (PS-2161) — 5/8″Marlow SCT & LX Pumps

Item #2161

2161 Mechanical Seal (PS-2161) — 5/8″ Type 6A

Equal to industry standard 2161 / PS-2161. Direct-fit Type 6A 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

5/8? shaft • 1.437? OD • 0.615? operating height • 1.375? × 0.406? ceramic cup seat • Type 6A • Molded carbon/Ceramic faces • Buna-N elastomers

Cross References:

Replaces Marlow (ITT Industries) 46328-00 and 46328000000 on SCT Series stainless steel pumps, and fits LX pumps. Cross-references to US Seal PS-2161.

Construction

Single-spring design running a molded carbon rotary face against a ceramic cup seat, with Buna-N elastomers throughout. Working length 0.615″ — check this against your old seal if you are matching from a worn part, as it is what separates the 5/8″ families from one another.

Is the 2161 Your Seal?

Pool and spa seals are rarely marked, so most people match by measuring. Check three things against your old seal:

Shaft diameter — 5/8″. Measure the motor shaft, not the seal bore.
Ceramic seat outside diameter — 1.375″. This is the flat ceramic ring that presses into the pump housing

Working length — 0.615″, the height of the seal assembly as it sits compressed.

Need Help Matching?

Send a photo of the old seal and your pump nameplate to info@sealhouseusa.com, or call or text 561-414-1046 — our seal specialists will confirm it before you order. No purchase required. Not sure which family you need? See our Pool/Spa Small Pump Guide

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

Weight	.25 lbs
Dimensions	1.5 × 1.5 × 1.5 in

360c mechanical seal (PS-360) for a 1-inch shaft, machined carbon and ceramic faces, fits Pentair EQ and Purex C Series pool pumps

360c Mechanical Seal (PS-360) — 1″Pentair EQ & Purex C Series Commercial Pool Pumps

Item #SH-360

A 1″ single-spring mechanical seal built to the PS-360 footprint, with the same 1.625″ seat and the same BCFJF configuration as the original. It drops into a Pentair EQ or Purex C Series commercial bronze pump using the factory 071725S service position — no shimming and no machining.

The carbon face is machined from solid stock rather than molded, which is the one place this seal is built above the standard PS-360 it replaces. A machined face runs flatter out of the box and holds that flatness longer against the ceramic, which is what keeps a commercial pump from weeping at the shaft after a season of run hours.

Fits: Pentair EQ Series and Purex® C Series commercial bronze pool pumps, all models (071725S), plus Berkeley (S-08742, S-09583), Ace Pump BCH-300, BCH-500, BCH-750 and BCH-1000 and models 100S, 133S, 150S and 175S, Carter (2S-5050, 2S-5089), A-C Pump / ITT (52-104-969-806) and Centrex (201-491, 201-493). Any 1″ shaft pump built to the US Seal PS-360 / Type 16 footprint.

Shaft size	1.000″
Seat / mating ring OD	1.625″
Seal type	T-16 (Type 16) single spring, head figure A, seat figure 1
Material code	BCFJF (Nitrile) · VCFJF (Viton)
Faces	Machined carbon vs. ceramic, or silicon carbide vs. silicon carbide
Elastomer	Nitrile (Buna) or Viton (FKM)
Cross-references	US Seal PS-360, PS-360V, PS-3874, PS-1909
OEM numbers	Pentair 071725S · Berkeley S-08742, S-09583 · Ace Pump 42120F, GE-7-V · Carter 2S-5050, 2S-5089 · A-C Pump / ITT 52-104-969-806 · Centrex 201-491, 201-493 · AG Chemical GL-7V
Brands	Pentair, Purex, Berkeley, Ace Pump, Carter, A-C Pump (ITT), Centrex
Nameplate data / pump models	EQ Series, Purex C Series (commercial bronze, all models), Ace BCH-300 / BCH-500 / BCH-750 / BCH-1000, Ace 100S / 133S / 150S / 175S

Which one do I need?

Option	Faces & Rubber	US Seal Equal	Best For This Water
360c	Machined carbon / ceramic / Nitrile	PS-360	Standard chlorinated pool and fresh water The direct PS-360 replacement.
360CV	Machined carbon / ceramic / Viton	PS-3874	Salt, ozone, UV, high chlorine, hot water This is the build US Seal sell as the PS-3874.
360CVSS	Silicon carbide / silicon carbide / Viton	PS-1909	Grit, sand, ag chemical, abrasive service 60CVSS, silicon carbide against silicon carbide with Viton. Hard faces on both sides survive sand and dry-run contact that would groove a carbon face. Equal to PS-1909.

Option

Faces & Rubber

US Seal Equal

Best For This Water

360c

Machined carbon / ceramic / Nitrile

PS-360

Standard chlorinated pool and fresh water

The direct PS-360 replacement.

360CV

Machined carbon / ceramic / Viton

PS-3874

Salt, ozone, UV, high chlorine, hot water

This is the build US Seal sell as the PS-3874.

360CVSS

Silicon carbide / silicon carbide / Viton

PS-1909

Grit, sand, ag chemical, abrasive service

60CVSS, silicon carbide against silicon carbide with Viton. Hard faces on both sides survive sand and dry-run contact that would groove a carbon face. Equal to PS-1909.

3865 Mechanical Seal (PS-3865) — 5/8″Pentair IntelliFlo, WhisperFlo & Polaris PB4-60 Pool Pumps

Mechanical Seal 3865 — T-6A (5/8″) | PS-3865

Equal to industry standard 3865 / PS-3865.
Direct-fit T-6A single-spring seal for pool/spa and small-pump applications—upgraded with Viton elastomers and a machined carbon/ceramic face set for longer service life.

At-a-glance specs: 5/8″ shaft • 1.25″ × 0.406″ cup seat • Machined carbon/ceramic 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

3866 Mechanical Seal (PS-3866) — 5/8″Sta-Rite & Pentair Dura-Glas, Max-E-Glas Pool Pumps

Mechanical Seal 3866 — Type 166 / T-16 (5/8″) | PS-3866

Equal to industry standard 3866 / PS-3866.
Direct-fit Type 166 / T-16 single-spring seal for pool/spa and small-pump applications—upgraded with Viton elastomers and a machined carbon/ceramic face set for longer service life.

At-a-glance specs: 5/8″ shaft • 1.187″ × 0.343″ cup seat • Machined 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

3867 Mechanical Seal (PS-3867) — 5/8″Hayward Max-Flo II & Pentair SuperFlo Pool Pumps

Mechanical Seal 3867 — Type 166 / T-16 (5/8″) | PS-3867

Equal to industry standard 3867 / PS-3867.
Direct-fit Type 166 / T-16 single-spring seal for pool/spa and small-pump applications—upgraded with Viton (FKM) elastomers and a machined carbon/ceramic face set for longer service life.

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

Fits: Hayward Max-Flo II® and Max-Flo VS (SPX1250XZ2), Pentair SuperFlo® and SuperFlo VS (354545S), Pentair / Pac-Fab Challenger®, Dynamo®, Dynatron® and Pinnacle®, Sta-Rite Dura-Glas® and Max-E-Glas® Series PE, PEA, P2R and P2RA, plus Speck, Waterway, Jacuzzi, Astral Pool and Doughboy pool and spa pumps. Pentair SuperFlo VST, the original Hayward Max-Flo (SP2800X) and Dura-Glas II / Max-E-Glas II take the PS-201; pre-1998 Dura-Glas takes the PS-100.

Same seal, same size, same fit — what changes is the material and how it’s built. All five seals below are the PS-200 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
200c	Molded carbon face, ceramic seat, Nitrile rubber	Normal chlorine, normal temperature, clear water. The standard build for a home pool or spa.
200cv	Molded carbon face, ceramic seat, Viton rubber	Saltwater or higher chlorine, and warmer water. Viton holds up where standard Nitrile hardens and cracks.
516	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.
3867	Machined premium carbon face, ceramic seat, Viton rubber	High chlorine and hot water — heated spas, therapy pools, heavy commercial duty.
200cvss	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

3868 Mechanical Seal (PS-3868) — 3/4″Hayward Super Pump & Pentair IntelliFloXF Pool Pumps

Mechanical Seal 3868 — Type 166 / T-16 (3/4″) | PS-3868

Direct-fit Type 166 / T-16 single spring seal for pool/spa and small pump applications- upgraded with Viton (FKM) elastomers and a machined carbon/ceramic face set for longer service life.

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

Fits: Hayward Super Pump®, Super Pump II, Super Pump VS and the original Max-Flo (SPX1600Z2), Pentair IntelliFloXF® and SuperFlo® VST (17351-0101S), Sta-Rite Dura-Glas® II, Max-E-Glas™ II, Max-E-Pro® and Dyna-Pro®, plus Pac-Fab, American Products, Purex, Swimquip and Jacuzzi pool and spa pumps. The standard Pentair IntelliFlo takes the PS-1000; Pentair SuperFlo / SuperFlo VS and Hayward Max-Flo II take the PS-200.

Same seal, same size, same fit — what changes is the material and how it’s built. All five seals below are the PS-201 for a 3/4″ 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
201c	Molded carbon face, ceramic seat, Nitrile rubber	Normal chlorine, normal temperature, clear water. The standard build for a home pool or spa.
201cv	Molded carbon face, ceramic seat, Viton rubber	Saltwater or higher chlorine, and warmer water. Viton holds up where standard Nitrile hardens and cracks.
851	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.
3868	Machined premium carbon face, ceramic seat, Viton rubber	High chlorine and hot water — heated spas, therapy pools, heavy commercial duty.
201cvss	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.

Rebuilding a Hayward Super Pump or Super II?Get this 3868 seal in a complete kit with both gaskets — choose Premium – Machined Carbon/Ceramic/Viton (3868) from the kit drop-down.

Doing the job yourself? Read How to Replace a Mechanical Pump Seal.

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

Weight	.25 lbs
Dimensions	1.5 × 1.5 × 1.25 in