Pentair 1/4" x 1/4" Tube Check Valve | R172323

Pentair SKU: R172323
Pentair 1/4" x 1/4" Tube Check Valve | R172323 - Chlorinator Parts - img - 1
Pentair 1/4" x 1/4" Tube Check Valve R172323 - Chemical Feeders - img - 1
Pentair 1/4" x 1/4" Tube Check Valve R172323 - Chemical Feeders - img - 2
Pentair 1/4" x 1/4" Tube Check Valve R172323 - Chemical Feeders - img - 3
Pentair 1/4" x 1/4" Tube Check Valve R172323 - Chemical Feeders - img - 4
Pentair 1/4" x 1/4" Tube Check Valve | R172323 - Chlorinator Parts - img - 1
Pentair 1/4" x 1/4" Tube Check Valve R172323 - Chemical Feeders - img - 1
Pentair 1/4" x 1/4" Tube Check Valve R172323 - Chemical Feeders - img - 2
Pentair 1/4" x 1/4" Tube Check Valve R172323 - Chemical Feeders - img - 3
Pentair 1/4" x 1/4" Tube Check Valve R172323 - Chemical Feeders - img - 4
Rainbow 300 / 302 Automatic Feeder Not sure it fits? See this part on the interactive diagram Rainbow 300 / 302 Automatic Feeder

Pentair 1/4" x 1/4" Tube Check Valve | R172323

Pentair SKU: R172323
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Pentair 1/4" x 1/4" Tube Check Valve | R172323

The Pentair 1/4″ x 1/4″ Tube Check Valve (R172323) is a compact one-way flow valve designed for use in pool and spa systems where small-diameter tubing is used. This check valve allows fluid or air to flow in one direction only, preventing backflow and helping maintain proper system operation in chemical feeders, automation, pressure lines, and other applications that require controlled directional flow.

What This Part Is For

This check valve is used with 1/4" diameter tubing commonly found in automatic chemical feed systems, vacuum switches, heaters, controllers, and other pool/spa devices where one-way flow must be maintained. It prevents undesirable backflow that could affect performance or cause contamination of upstream components.

Features & Benefits

  • Designed for 1/4" tube connections — no adapters required for correct size
  • One-way flow design prevents backflow for more reliable operation
  • Compact, inline construction for easy installation in tight spaces
  • Compatible with common pool and spa tubing applications

Installation Notes

  • Confirm proper flow direction — arrow on the valve must point downstream
  • Cut tubing squarely before inserting into check valve ends
  • Push tubing fully into valve fittings to ensure a secure seal
  • Use clamps if recommended for your tubing type to prevent slippage

Maintenance Tips

  • Inspect periodically for cracking, debris, or loss of one-way function
  • Replace if flow becomes restricted or backflow occurs
  • Keep adjacent tubing and components clean to support proper valve function

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Questions about returns? View our return policy.

Hours Of Operation:

Monday - Friday: 7:00 am to 5:00 pm Phoenix Time

Saturday: 8:00 am to 2:00 pm

Sunday: Closed

  • We do not ship on Saturday or Sunday.
  • Orders totaling more than $300 will require signature confirmation upon delivery.
  • We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
  • Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
  • Expedited shipping options are available at checkout.

Return Policy:

  • Products that are received damaged will receive a refund in store credit.
  • Most products are eligible for return within 30 days of receipt, except where noted below.
  • To initiate a return, please complete an RMA form prior to sending your item back.
  • Original shipping costs are non-refundable and will be deducted from the return credit.
  • Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
  • Some returns will be charged an automatic 15% restocking fee.
  • We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
  • Please complete the return form to receive your RMA number and return shipping label.
  • Chemical products are not eligible for return under any circumstances.
  • The Pentair Colorsync 618031 is not eligible for return.
  • Pool cleaners are not eligible for return.
  • Opened seals and o-rings are not eligible for return.
  • Capacitors are not eligible for return.
  • Plastic popup tools are not eligible for return.
  • Automation components and circuit boards are not eligible for return.
  • If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
  • Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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