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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.

Hours Of Operation: 

Monday - Friday: 8:00 am to 4:00 pm Phoenix Time

Saturday and Sunday: Closed

  • Orders costing more than  $300 WILL be required to have signature confirmation upon delivery.
  • Handling time is typically only 1 day.   
  • Any item ordered after 1pm Phoenix time, may not ship same-day.
  • Call us if you require expedited shipping and we can give you quotes based on your needs.

Return Policy:

  • All products, except as noted below, are eligible for return up to 30 days after receipt of item.
  • For returns, an RMA form must be filled out HERE or customers can call for additional help.
  • Shipping costs will be deducted from all returned items.
  • Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in. 
  • Items broken, damaged, or inoperable due to installer error will not be refunded.
  • Fill out the return form or give us a call to obtain an RMA and return shipping label.
  • There are no returns on the Pentair Colorsync 618031
  • No returns on pool cleaners.
  • No returns on opened seals and o-rings.
  • No returns on capacitors.
  • If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
  • All products denied upon arrival at customers house WILL be charged the cost to ship.
  • Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.
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