Pentair 354545S 5/8 inch mechanical shaft sealPentair Mechanical Shaft Seal, 5/8", 354545S In stock$3599
Pentair 354545S 5/8 inch mechanical shaft seal
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Pentair Mechanical Shaft Seal, 5/8", 354545S

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$3599
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Quick overview

  • Genuine Pentair Factory part 354545S, the seal set Pentair fits at the factory.
  • Type 6, 5/8 inch A Type 6 mechanical seal set sized for a 5/8 in motor shaft.
  • Sold as a set Both halves come together, the rotating face and the seated ceramic, because they must be replaced as a pair.
  • Buna and graphitic plastic The seal faces and elastomer are the materials Pentair specifies for this seal.
  • Wide model coverage Listed for Challenger, Pinnacle, SuperFlo, SuperMax, OptiFlo and Dynamo pumps, plus the WaterFall specialty pump.
  • Cross references to US Seal PS-200 If you have been quoted a PS-200, this is the Pentair equivalent.
Full description and specifications ↓

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Product details

The Pentair 354545S is a Type 6 mechanical shaft seal set for a 5/8 inch motor shaft. It is the genuine Pentair part, listed for the Challenger high flow and high pressure inground pumps and for the WaterFall specialty pump, and also listed for Pinnacle, SuperFlo, SuperMax, OptiFlo and Dynamo models.

What the seal does

The shaft seal is the barrier between wet end and motor. Two lapped faces run against each other, one spinning with the shaft and one held still in the seal plate, and the film of water between them is all that separates pool water from the motor bearings. When that pair wears, the first sign is a drip under the motor end of the pump, and the last sign is a seized motor.

Materials and construction

Pentair specifies Buna and graphitic plastic for this seal. It cross references to the US Seal PS-200, so a shop quoting a PS-200 is quoting the same seal.

Replace both halves

This is sold as a set for a reason. The two faces wear into each other, and fitting a new rotating half against an old ceramic seat will weep almost immediately. Change the pair, keep the faces clean and dry going in, and lubricate only the elastomer, never the lapped faces.

Specifications
Brand Pentair
Manufacturer part number 354545S
UPC 788379787837
Type Type 6 mechanical seal set
Shaft size 5/8 inch
Materials Buna and graphitic plastic
Fits Challenger High Flow and High Pressure inground pumps, WaterFall Specialty Pump
Also listed for Challenger, Pinnacle, SuperFlo, SuperMax, OptiFlo, Dynamo
Cross reference US Seal PS-200
Shipping weight 0.2 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

What size shaft does this seal fit?
5/8 inch. It is a Type 6 mechanical seal set for a 5/8 in motor shaft.
Which pumps does it cover?
Pentair lists it for the Challenger high flow and high pressure inground pumps and the WaterFall specialty pump, and it is also listed for Pinnacle, SuperFlo, SuperMax, OptiFlo and Dynamo models.
Is this the same as a US Seal PS-200?
Pentair cross references 354545S to the US Seal PS-200, so a PS-200 quote points to this part.
Do I get both halves of the seal?
Yes, it is a seal set. The spring loaded rotating half and the stationary seated half both come in the box, which matters because running a new face against an old one will leak.
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