Pump Shaft Seal PS-1000, Heavy Duty (Saltwater Pools) - PS-3865



Part # 5250-225

By U.S. Seal Manufacturing

  4.84 Average  



Part # 5250-225

Manufacturer Code PS-3865

Dimensions 1.5" L x 1.5" W x 2" D

Alternate Part #'s PS-1000, PS-3865, PS-3865R, PS1000, PS3865, PS3865R

Product Description

Heavy duty pump motor shaft seal made with carbon graphite, stainless steel and Viton rubber.  These materials provide increased durability and resistance to chemicals and salt.  

Can be used for standard chlorine pools.  Strongly recommended for use on pool and spa pumps connected to salt chlorine systems or ozonators.

This seal can be used on a number different makes and models of pumps (see complete list under the "Parts" tab above).  Some of the more common pumps include the Pentair Whisperflo, American Products Ultra Flo, Polaris PB460 booster pump, and Astral Astra Max.



?     Asked on 6/28/2018 by kevin

Although my pump/motor is 12 years old, it seems that the shaft seal is leaking. I could barely make out the name of pump, but it looks like it spells Whisper. The P/N 01175 PMP WF - 30 230V 21/2 HP Can you match this up with needed seals? Thanks

A  Answered on 6/28/2018 by InyoPools Product Specialist Lennox H.

Hi, Kevin. This Pump Shaft Seal - PS3865 will fit your pump based on the info provided.

?     Asked on 1/18/2018 by Julie

Pump Seal 1000, Heavy Duty PS3865 (Saltwater Pools) - PS-3865 Is this the correct seal for Polaris Whisper 011772?

A  Answered on 1/18/2018 by InyoPools Product Specialist Lennox H.

Hi, Julie. This Pump Seal will fit the Pentair Whisperflo Pump - 011772. 

?     Asked on 6/4/2016 by

how is this part replaced

A  Answered on 6/5/2016 by InyoPools Product Specialist Patrick P.

We have a Video on How to Replace a Pool Pump Shaft Seal which you should find helpful.

?     Asked on 12/10/2014 by Wayne Gill

Is this the correct seal for a Polaris PB4-60W

A  Answered on 12/10/2014 by InyoPools Product Specialist Alex V.

Wayne, Yes. This can be used on the Polaris PB4-60 booster pump.

?     Asked on 1/25/2012 by Guest

How do I change the shaft seal on my pool pump?

A  Answered on 1/25/2012 by InyoPools Product Specialist Patrick P.

Changing the shaft seal is quite simple. Here's How To Replace a Pool Motor Shaft Seal.

?     Asked on 1/17/2012 by Guest

Why should I purchase the heavy duty seal?

A  Answered on 1/17/2012 by InyoPools Product Specialist Patrick P.

The heavy duty shaft seal features carbon graphite, stainless steel, and Viton rubber. The properties of this seal contribute to the resistance of chemical corrosion. This is the best choice for salt chlorine generators or ozonators.


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