CMP 21063-200-000 2 in. MPT x 2 in. slip CPVC pump unionCMP Pump Union, Threaded 2" MPT x 2" Slip, CPVC, 21063-200-000 In stock$2099
CMP 21063-200-000 2 in. MPT x 2 in. slip CPVC pump union
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CMP Pump Union, Threaded 2" MPT x 2" Slip, CPVC, 21063-200-000

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$2099
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Quick overview

  • Heat tolerant CPVC will not shrink and open a suction leak if the pump overheats.
  • 2 in. MPT x 2 in. slip male thread into the pump port, solvent weld socket onto 2 in. pipe.
  • Pump comes off in seconds undo the union nut and lift the pump out, no cutting existing plumbing.
  • Pentair fit sized for WhisperFlo, IntelliFlo and Challenger pump ports.
  • Sold individually order two to union both the suction and discharge sides.
  • Genuine CMP part number 21063-200-000.
Full description and specifications ↓

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Product details

This CMP union puts a detachable joint between your pool pump and the plumbing. One end is 2 in. male pipe thread that screws into the pump port, the other is a 2 in. slip socket that glues onto the pipe. When the pump needs to come off, back off the union nut and lift it out. Nothing gets cut.

Why CPVC matters here

Pump unions live next to the hottest part of the system. If a pump runs dry or overheats, an ordinary PVC union can shrink and open a suction leak that is hard to find. This union is molded from heat tolerant CPVC, which holds its shape through that kind of abuse.

Fit

CMP sizes it for Pentair WhisperFlo, IntelliFlo and Challenger pumps, and it works on any pump with a 2 in. female threaded port. It is sold individually, so order two to union both the suction and discharge sides.

From Pool School

How to Prime a Pool PumpFrom the breaker to a full pot, each manufacturer's time limit, and what to check when it won't catch prime. Read Replace the Pool Pump Motor or the Whole Pump?The manufacturers' tests first, what each repair replaces, and the federal motor rule. Read
Specifications
Brand CMP
Manufacturer part number 21063-200-000
UPC 849640000366
Connections 2 in. MPT x 2 in. slip
Material CPVC
Fits Pentair WhisperFlo, IntelliFlo, Challenger pumps
Shipping weight 0.55 lb
Ships Parcel

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Questions and answers

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

Why CPVC instead of regular PVC?
CPVC tolerates more heat. If a pump runs dry or overheats, a standard PVC union can shrink and open a suction leak. The CPVC union holds its shape.
What does 2 in. MPT x 2 in. slip mean?
One end has 2 in. male pipe thread that screws into the pump port. The other end is a 2 in. socket that solvent welds onto 2 in. PVC pipe.
Which pumps does it fit?
CMP lists it for Pentair WhisperFlo, IntelliFlo and Challenger pumps. Any pump with a 2 in. female threaded port takes it.
Is one union enough?
Each union connects one port. Most installs use two, one on the suction side and one on the discharge, so the pump lifts straight out for service.
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