Pentair Rainbow R172324NS 1/2 inch tube x tube check valvePentair Rainbow 1/2" Tube x Tube Check Valve, R172324NS In stock$4399
Pentair Rainbow R172324NS 1/2 inch tube x tube check valve
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Pentair Rainbow 1/2" Tube x Tube Check Valve, R172324NS

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$4399
In stock
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Quick overview

  • Prevents backflow Fitted so chemical and water cannot travel back into equipment from the feeder line.
  • Half inch tube by tube Both ends take 1/2 inch tubing, the size used on the chlorinator feed line.
  • Pentair Rainbow R172324NS The OEM part number for this valve in the Rainbow feeder range.
  • Rainbow 300 series Listed for the Rainbow automatic chlorinator, model 300-29X.
  • Protects downstream gear Chlorinator solution running backwards attacks heaters, pumps and fittings, and this valve is what stops it.
  • Small part, big consequence A failed check valve on a feeder line can quietly corrode expensive equipment before anyone notices.
Full description and specifications ↓

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Product details

The Pentair Rainbow R172324NS is a 1/2 inch tube by tube check valve used on chlorinator plumbing to prevent backflow into equipment. It is listed for the Rainbow automatic chlorinator, model 300-29X.

Why it is there

A chemical feeder puts strong sanitizer solution into the return line. As long as water is moving forward that solution is diluted straight away and carried into the pool. When the pump stops and there is nothing holding the line, that concentrated solution can creep backwards toward the heater, the pump and the fittings. Metal parts do not survive that for long.

When to change it

Check valves in feeder lines are consumable. The seat is exposed to sanitizer around the clock and eventually it stops seating cleanly. If you find corrosion on equipment near the feeder, or you can see flow tracking the wrong way with the pump off, replace the valve before repairing anything downstream.

Specifications
Brand Pentair
Manufacturer part number R172324NS
UPC 788379005344
Type Check valve
Size 1/2 inch
Connection Tube x tube
Function Prevents backflow into equipment
Fits Pentair Rainbow chlorinator model 300-29X
Shipping weight 0.3 lb
Ships Parcel

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Questions and answers

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

What size tubing does it take?
Half inch, on both ends.
What is it for?
It stops flow running back down the chlorinator line into your equipment.
Which chlorinator does it fit?
It is listed for the Pentair Rainbow automatic chlorinator, model 300-29X.
How do I know mine has failed?
If solution or water moves backwards through the feed line when the pump is off, or you see corrosion appearing on equipment near the feeder, the check valve is the first suspect.
Ask your own question