Sta-Rite WC19-64 top clamp for Posi-Flo TX and TXR filter tanksSta-Rite Posi-Flo Filter Top Clamp, WC19-64$7899
Sta-Rite WC19-64 top clamp for Posi-Flo TX and TXR filter tanks
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Sta-Rite Posi-Flo Filter Top Clamp, WC19-64

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$7899
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Quick overview

  • Named model coverage Fits Sta-Rite filter models T-50TX, T-70TX, T-100TX, T-50TXR, T-70TXR and T-100TXR.
  • Holds the tank closed The clamp is what keeps the two tank halves pulled together against the tank o-ring.
  • Pressure bearing part A cracked or corroded clamp is a leak and a safety issue, not just a cosmetic fault.
  • Sta-Rite part WC19-64 The factory reference number for this clamp.
  • Common corrosion point Clamps sit outside in the weather and rust at the bolt, so they often outlive their usefulness before the tank does.
  • Restores a proper seal A clamp that no longer draws down evenly will weep at the tank seam no matter how new the o-ring is.
Full description and specifications ↓

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Product details

The Sta-Rite WC19-64 is the top clamp for filter models T-50TX, T-70TX, T-100TX, T-50TXR, T-70TXR and T-100TXR.

What the clamp does

The filter tank is built in two halves that meet at a seam sealed by an o-ring. The clamp is the band that pulls them together and holds that seal against system pressure. It is a structural part, so a clamp that has cracked, stretched or corroded through is not something to keep tightening.

Chasing a seam leak

When water weeps from the seam, most people replace the tank o-ring, which is right most of the time. If the leak comes straight back, look at the clamp itself. A band that has lost its shape, a bolt that has rusted and will no longer draw evenly, or a lug that has started to split will all leave one section of the seam under less pressure than the rest, and the o-ring cannot make that up.

Fitting

Always release system pressure and open the air relief before touching the clamp on a running filter. Draw the new clamp down evenly, and check that the tank halves are seated squarely before applying full torque.

Specifications
Brand Sta-Rite
Manufacturer part number WC19-64
UPC 788379853112
Type Filter tank top clamp
Fits Sta-Rite filter models T-50TX, T-70TX, T-100TX, T-50TXR, T-70TXR, T-100TXR
Shipping weight 1.1 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 clamp fit?
Sta-Rite models T-50TX, T-70TX, T-100TX, T-50TXR, T-70TXR and T-100TXR.
My filter leaks at the seam. Is the clamp or the o-ring at fault?
Check both. A flattened or nicked tank o-ring is the usual cause, but a clamp that has stretched, cracked or seized at the bolt will not pull the halves together evenly and the leak returns with a new o-ring.
Does the tank o-ring come with the clamp?
No. The clamp is sold on its own, and the tank o-ring is a separate part.
Is it safe to reuse a rusty clamp?
Not if the corrosion has eaten into the band or the bolt. The clamp is holding a pressurized tank together, so a weakened one should be replaced rather than retightened.
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