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Pump Shaft Seal Guide

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Replacement Shaft Seal Types

Good

  • Buna/Graphitic Plastic
  • Industry standard for general pool applications
  • Includes PS-100, 200, 201, 501, 601, 1000 and 2131
  • These seals are NOT RECOMMENDED for spas, ozonators or salt chlorine generators

Better

  • Ozone/Salt Service Seals
  • Viton/Carbon Graphite
  • Use for applications involving salt chlorine generators or ozonators
  • These applications require tough seals

Best

  • SCS Silicon Carbide Seals
  • Silicon Carbide, Viton & Stainless Steel
  • For your most demanding applications
  • Superior abrasion, corrosion and chemical resistance
  • Best choice for salt generators or ozonators
  • More forgiving when pump is run dry or accidentally loses prime
  • Compatible with all pool & spa chemicals
  • The best seal on the market! Upgrade your customers and provide them with peace of mind!
Configuration Shaft Size Common Equivalent Good Horizon # Good U.S Seal# Better Horizon # Better U.S. Seal # Best Horizon # Best U.S. Seal #
Ceramic In Volute
35-423-1000 5/8" PS-100 35-423-1000 PS-100 35-423-1005 PS-3866 35-423-1002 PS-1900
5/8" PS-200 35-423-1020 PS-200 35-423-1019 PS-3867 35-423-1022 PS-1901
5/8" PS-501 35-423-1040 PS-501 35-423-1043 PS-3864 35-423-1041 PS-1903
5/8" PS-3890   35-423-1088 PS-3890 35-423-1089 PS-1907
3/4" PS-201 35-423-1021 PS-201 35-423-1025 PS-3868 35-423-1023 PS-1902
3/4" PS-851 35-423-1042 PS-851 35-423-1096 PS-201V-CMS 35-423-1090 PS-1908
7/8" PS-309 35-423-1039 PS-309    
1" PS-360 35-423-1092 PS-360 35-423-1094 PS-3874 35-423-1093 PS-1909
Ceramic In Impeller
35-423-1060 3/8" PS-671 35-423-1062 PS-671    
1/2" PS-142 35-423-1052 PS-142    
1/2" PS-163 35-423-1084 PS-163      
5/8" PS-1000 35-423-1060 PS-1000 35-423-1048 PS-3865 35-423-1061 PS-1905
3/4" PS-601 35-423-1080 PS-601 35-423-1044 PS-3986 35-423-1082 PS-1904
Ceramic In Volute With Plastic Cup
35-423-1070 5/8" PS-2131 35-423-1070 PS-2131 35-423-1069 PS-3869 35-423-1072 PS-1906
Speck Style
35-423-1056 60mm PS-VGM-2920 35-423-1056 PS-VGM-2920      
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Replacement Shaft Seal Identification

Shaft Seals ID Guide

Head Types

Type A
Type B
Type C
Type D

Identification Chart

Type Seal Head Type Shaft Size Seal OD Seal Height Mating Ring Diameter Mating Ring Thickness
PS-100* A 5/8" 1-7/32" 13/16" 1-13/16" 11/32"
PS-200* A 5/8" 1-7/32" 13/16" 1-1/4" 13/32"
PS-501* A 5/8" 1-7/32" 15/16" 1-1/4" 13/32"
PS-2131* A 5/8" 1-7/32" 13/16" 1-1/4" Lexan Cup
PS-201* A 3/4" 1-11/32" 13/16" 1-3/8" 13/32"
PS-851 A 3/4" 1-11/32" 13/16" 1-3/8" 13/32"
PS-360* A 1" 1-13/16" 1" 1-7/8" 7/16"
PS-671* B 3/8" 1-1/8" 15/32" 7/8" 5/32"
PS-163* B 1/2" 1-1/8" 43/64" 1" 5/16"
PS-142* B 1/2" 1-1/8" 43/64" 1" 7/32"
PS-1000* B 5/8" 1-7/16" 25/32" 1-1/4" 13/32"
PS-601* B 3/4" 1-9/16" 51/64" 1-3/8" 13/32"
VGM-2920* B 3/4" 1-17/32" 47/64" 1-13/32" 19/64"
PS-309* C 7/8" 1-5/16" 3" 1-1/2" 13/32"
PS-3890* D 5/8" 1-1/32" 27/32" 1-3/8" 13/32"
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Pump Shaft Seal Replacement Guide

Manfacturer Pump Model Manf. Seal # Shaft Seal Horizon #
Acura Aquaheat AS 1000 35-423-1060
Acura Aquaheat Plus AS 1000 35-423-1060
Acura Magnaflow AS 1000 35-423-1060
Acura Maverick AS 1000 35-423-1060
American Products Americana 39500500 AS 201 35-423-1021
American Products Americana II 71734 AS 1000 35-423-1060
American Products Bronze 71734 AS 1000 35-423-1060
American Products Bronze, Noryl 39500500 AS 201 35-423-1021
American Products Eagle 71734 AS 1000 35-423-1060
American Products Maxim 71734 AS 1000 35-423-1060
American Products Power Glas 71734 AS 1000 35-423-1060
American Products Ultra Flow 71734 AS 1000 35-423-1060
Aqua Flo A series 92500050 AS 1000 35-423-1060
Aqua Flo AC series 92500000 AS 309 35-423-1039
Aqua Flo Dominator (pre 1995) 92500050 AS 1000 35-423-1060
Aqua Flo Dominator (after 1995) 92500150 AS 200 35-423-1020
Aqua Flo Flo-Master FMCP 91049000 PS 2131 35-402-1008
Aqua Flo Flo-Master FMHP 91049000 PS 2131 35-402-1008
Aqua Flo Flo-Master FMVP 91049000 PS 2131 35-402-1008
Aqua Flo Flo-Master XP2 48FR 92500150 AS 200 35-423-1020
Aqua Flo Flo-Master XP2 56FR 92500150 AS 200 35-423-1020
Hayward Max-Flo SP1800X series SPX1600Z2 AS 1521 35-423-1065
Hayward Max-Flo SP2800X series SPX1600Z2 AS 1521 35-423-1065
Hayward Northstar SP4000 series SPX1600Z2 AS 1521 35-423-1065
Hayward Northstar SP4000X series SPX1600Z2 AS 1521 35-423-1065
Hayward SP 1500 Power Flo SP1500-KA PS 2131 35-402-1008
Hayward SP 1580 Power Flo LX SP1500-KA PS 2131 35-402-1008
Hayward SP 1700 Power Flo II SP1500-KA PS 2131 35-402-1008
Hayward SP1600X Super Pump SPX1600Z2 AS 1521 35-423-1065
Hayward SP2600 Super Pump SPX1600Z2 AS 1521 35-423-1065
Hayward SP2600X Super Pump SPX1600Z2 AS 1521 35-423-1065
Hayward SP3000 Super II SPX1600Z2 AS 1521 35-423-1065
Hayward SP3000X Super II SPX1600Z2 AS 1521 35-423-1065
Hydrabaths Hyflo II AS 200 35-423-1020
Hydrabaths Hyflo SD AS 200 35-423-1020
Hydr-O-Dynamics Hydro Power AS 1000 35-423-1060
Jacuzzi Brothers LR series 10-0002-06 AS 200 35-423-1020
Jacuzzi Brothers Cygnet series 10-0002-06 AS 200 35-423-1020
Jacuzzi Brothers J, JCM, K, KM 10-0002-06 AS 200 35-423-1020
Jacuzzi Brothers L, LC, LCUN2, LT LX, 10-0002-06 AS 200 35-423-1020
Jacuzzi Brothers L3 & L25 10-0002-06 AS 200 35-423-1020
Jacuzzi Brothers LH & LTH 10-0002-06 AS 200 35-423-1020
Jacuzzi Brothers LPH, LPC, LTPH 10-0002-06 AS 200 35-423-1020
Jacuzzi Brothers LR series 10-0002-06 AS 200 35-423-1020
Jacuzzi Brothers LR, LR9, LR3, LR6, LR25 10-0002-06 AS 200 35-423-1020
Jacuzzi Brothers Magnum 10-1502-09 AS 201 35-423-1021
Jacuzzi Brothers P, PC, EP 10-1502-09 35-105-1115
Jacuzzi Brothers PH & UPS 10-1502-09 35-105-1115
Jacuzzi Brothers Pirahna “A” 10-0002-06 AS 200 35-423-1020
Jacuzzi Brothers R, P, PC, UP 10-1502-09 35-105-1115
Jacuzzi Brothers RC 10-1502-09 35-105-1115
Jacuzzi Brothers SLPH, SLTPH 10-0002-06 AS 200 35-423-1020
Jacuzzi Brothers ULSB & ULSC 10-0002-06 AS 200 35-423-1020
Jacuzzi Brothers Magnum 10-1502-09  35-105-1115
PacFab Challenger 354545 AS 200 35-423-1020
PacFab Dynamo 354545 AS 200 35-423-1020
PacFab Hydro 354001 AS 201 35-423-1021
Premier Springwater 320/325 AS 201 35-423-1021
Premier Springwater Spa II AS 1000 35-423-1060
Purex Quietflo/Aquatron 71733 AS 501 35-423-1040
Purex Whisperflo 71734 AS 1000 35-423-1060
Sonfarrell Spa Master AS 1000 35-423-1060
Speck Pump Model 90, 93, and others 2920343310 35-475-1000
Sta-rite ABG 37400-0026S AS 201 35-102-1574
Sta-rite CF6 U109-136SS AS 1000 35-423-1060
Sta-rite CFA U109-136SS AS 1000 35-423-1060
Sta-Rite Dura-Jet DJ, JS, JT series 37400-0027S 35-102-1406
Sta-rite Dura-Jet JS series 37400-0027S 35-102-1406
Sta-Rite Dura-Jet TPE/TPR 37400-0027S 35-102-1406
Sta-rite Dyna-Glas/Dyna-Max 37400-0027S 35-102-1406
Sta-rite Dyna-Jet 37400-0027S 35-102-1406
Sta-rite JW 34700-0026S AS 201 35-102-1574
Sta-rite JWPA 37400-0026S AS 201 35-102-1574
Sta-rite LT U109-68SS 35-102-1319
Sta-rite Max-E-Glas/Dura-Glas 17304-0100S 1998 to present 35-102-1031
Sta-rite Max-E-Glas/Dura-Glas U109-9355 Pre 1998 35-102-1030
Sta-rite Max-E-GlasII/Dura-GlasII 37400-0027S 1998 to present 35-102-1406
Sta-rite Max-E-GlasII/Dura-GlasII U109-372SS Pre 1998 35-102-1147
Vico Products Superflo PPSFSEAL PS2136 35-423-1075
Vico Products Ultima PPSFSEAL PS2136 35-423-1075
Vico Products Ultraflo PPSFSEAL PS2136 35-423-1075
Waterway Center-Discharge 319-3100B AS 1000 35-423-1060
Waterway Executive Series AS 1000 35-423-1060
Waterway Hi-Flo 319-3100B AS 1000 35-423-1060
Waterway Hi-Flo SD AS 1000 35-423-1060
Waterway Mustang/Workhorse 811-1001B AS 1000 35-423-1060
Waterway Mustang/Workhorse 811-1101A AS 1000 35-423-1060
Waterway Spa/Bath AS 1000 35-423-1060
Waterway Super-Flo SD AS 1000 35-423-1060
Waterway SVL 56 319-3100B AS 100 35-423-1060
Waterway Tiny Might Back 811-4000B 35-270-2007
Waterway Tiny Might Front 811-4000A 35-270-2005