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Pentair TR50 Air Relief Tube | 150040

Pentair SKU: 150040

Pentair TR50 Air Relief Tube | 150040

Pentair SKU: 150040
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Pentair 150040 Air Relief Tube for Triton II TR50 / TR60 Sand Filters (After 11/1999)

The Pentair 150040 is an OEM replacement air relief tube used on select Pentair/PacFab Triton II sand filters. This internal tube helps route trapped air to the filter air-relief system during startup and after service, supporting proper air purge, stable pressure readings, and normal filter operation.

Common Compatibility (Verify by Model & Production Date)

  • Pentair/PacFab Triton II sand filters: TR50 and TR60
  • Commonly listed for units manufactured after November 1999

Important: Triton/Triton II internal parts can vary by production version. Confirm your filter model and date range before ordering.

Key Details

  • Part number: 150040
  • Part type: Internal air relief tube
  • Common cross reference: 4600-0040
  • Typical application: Triton II TR50/TR60 air relief path

What This Part Does

  • Helps vent trapped air from the filter tank during startup and after maintenance
  • Supports smoother priming and more stable filter pressure readings
  • Restores proper air-relief function when the original tube is brittle, cracked, kinked, or missing

Common Signs You May Need Replacement

  • Air does not purge properly after filter service
  • Visible cracking, brittleness, or kinking of the tube
  • Erratic pressure readings caused by trapped air (after ruling out other system issues)
  • Tube comes loose or no longer seats correctly

Installation Notes

  • Turn off the pump and relieve all filter pressure before opening the filter.
  • Remove the old tube and inspect the air-relief path for debris, scale, or blockage.
  • Install the new tube in the same routing/orientation as the original to avoid kinks.
  • After reassembly, restart the system and bleed air until a steady stream of water is present.

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Maintenance Tips

  • Always bleed air after filter service and startup to protect the system and stabilize pressure readings.
  • If air repeatedly collects in the filter, inspect suction-side fittings, pump lid O-ring, and drain plugs for air leaks.
  • Keep the air relief path clean to prevent blockage from scale or debris.
  • Record your clean starting pressure and service the filter when pressure rises about 8–10 PSI over baseline.
Questions about returns? View our return policy.

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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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