Waterway 415-5001 black 2 inch union nutWaterway Union Nut 2" Black, 415-5001 In stock$699
Waterway 415-5001 black 2 inch union nut
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Waterway Union Nut 2" Black, 415-5001

Ask a questionMPN 415-5001
$699
In stock
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Quick overview

  • Genuine Waterway part The factory 415-5001 union nut, cut to the Waterway thread.
  • 2 inch size Sized for the 2 inch unions used on Waterway pumps and filters.
  • Listed across pumps and filters Referenced for the Workman pump and the Clearwater cartridge and DE filters.
  • The part that usually cracks Union nuts split from being overtightened or from years of sun, long before the union body fails.
  • Nut only The union body, tailpiece and o-ring are separate parts and are not included.
  • Black finish Matches the black union hardware on Waterway equipment.
Full description and specifications ↓

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Product details

The Waterway 415-5001 is the 2 inch union nut in black, listed for Waterway Workman pumps and the Clearwater cartridge and DE filters.

What the nut does

A union is three parts: the body, the tailpiece and the nut that pulls them together onto an o-ring. The nut carries all the clamping load, which is why it is the piece that fails. Once it cracks, the joint cannot be tightened and the equipment cannot be isolated for service.

Fitting and one warning

Union nuts on pool plumbing are designed to seal hand tight against a sound o-ring. If it needs a wrench, the o-ring is the problem, not the torque. Overtightening is the most common way these get broken, so fit a fresh o-ring at the same time and leave the pipe wrench in the truck.

Specifications
Brand Waterway
Manufacturer part number 415-5001
Type Union nut
Size 2 in
Color Black
Part type, as listed Pool filter part
Listed for Waterway Workman pumps, Waterway Clearwater cartridge filters, Waterway Clearwater DE filters
Ships Parcel

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Questions and answers

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

What size is this nut?
2 inch, in black.
What does it fit?
It is listed for Waterway Workman pumps and for the Waterway Clearwater cartridge and DE filters.
Does the o-ring come with it?
No. This is the union nut on its own. The union o-ring and the tailpiece are separate parts, and the o-ring is worth replacing at the same time.
Mine is cracked. Was I overtightening it?
Usually. Union nuts are meant to be hand tight against a good o-ring. Reaching for a wrench is what splits them, and so is a decade of direct sun on the plastic.
Ask your own question