Sta-Rite 24752-0050 bulkhead retaining nut for System 3 filter tanksSta-Rite 4.5" x 1.25" Bulkhead Retaining Nut, 24752-0050 In stock$3799
Sta-Rite 24752-0050 bulkhead retaining nut for System 3 filter tanks
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Sta-Rite 4.5" x 1.25" Bulkhead Retaining Nut, 24752-0050

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$3799
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Quick overview

  • Holds the bulkhead in place The nut that clamps the bulkhead fitting into the filter tank wall.
  • 4.5 in. by 1.25 in. The dimensions given for this nut, so it can be checked against the one on the tank.
  • System 3 filters Listed with Sta-Rite System 3 cartridge and D.E. filter parts.
  • Factory part number Ordered as 24752-0050 rather than by guessing a thread size.
  • A leak point A cracked or stripped retaining nut lets the bulkhead move and weep at the tank.
  • Sold on its own This is the nut only, so the O-ring and the bulkhead fitting are separate parts.
Full description and specifications ↓

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Product details

Sta-Rite 24752-0050 is the bulkhead retaining nut used on System 3 filter tanks, measuring 4.5 inches by 1.25 inches. It is the nut that clamps the bulkhead fitting into the tank wall and holds the port square and sealed.

Fitment, and a note on the listings

The source data lists this nut two different ways. One listing puts it on the System 3 Modular SMD Series and SD Series D.E. filters. The other lists it under System 3 cartridge filter models S7M120, S7M400, S8M150 and S8M500, and D.E. filter models S7D75 and S8D110. Both readings are given here so you can check them against your own tank, along with the 4.5 inch by 1.25 inch dimensions.

What is in the box

The retaining nut alone. The O-ring that seals the bulkhead and the bulkhead fitting itself are separate Sta-Rite parts, and both are worth inspecting while the tank is open.

Specifications
Brand Sta-Rite
Manufacturer part number 24752-0050
UPC 788379828622
Type Bulkhead retaining nut
Size 4.5 in. x 1.25 in.
Part type Pool filter part
Fits Sta-Rite System 3 Modular SMD Series D.E. filter, Sta-Rite System 3 SD Series D.E. filter
Also listed for Sta-Rite System 3 cartridge filter models S7M120, S7M400, S8M150, S8M500 and Sta-Rite System 3 D.E. filter models S7D75, S8D110
Shipping weight 0.15 lb
Ships Parcel

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Questions and answers

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

Which filters does this nut fit?
The source lists it two ways. One listing gives the System 3 Modular SMD Series and SD Series D.E. filters. The other gives System 3 cartridge models S7M120, S7M400, S8M150 and S8M500 and D.E. models S7D75 and S8D110. Check the nut on your tank against the 4.5 in. by 1.25 in. dimensions before ordering.
Does it come with the O-ring?
No. This is the retaining nut on its own. The bulkhead O-ring and the bulkhead fitting itself are separate Sta-Rite parts.
What does a bulkhead retaining nut do?
It threads onto the bulkhead fitting from inside the tank and clamps it against the tank wall so the port stays sealed and does not move.
Is this a Sta-Rite part?
Yes. It is listed under the Sta-Rite brand as part number 24752-0050.
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