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Pentair G4 / G4V / G4VHP Cleaning Head O-Ring 236770

Pentair SKU: 236770

Pentair G4 / G4V / G4VHP Cleaning Head O-Ring 236770

Pentair SKU: 236770
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Questions about returns? View our return policy.
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Pentair 236770 G4 / G4V / G4VHP Round O-Ring

The Pentair 236770 Round O-Ring is a genuine replacement sealing O-ring for compatible Pentair In-Floor and former A&A Manufacturing G4, G4V, and G4VHP in-floor cleaning head assemblies. This O-ring helps create a proper seal between the cleaning head components and the floor fitting, helping maintain system pressure and reliable pop-up head performance.

A worn, stretched, cracked, flattened, or missing O-ring can allow water to bypass the cleaning head, which may reduce cleaning performance, weaken pop-up action, or affect how the head seats in the floor fitting. Replacing the O-ring is a simple maintenance step that can help restore proper sealing and operation in compatible Gamma 4 cleaning head systems.

Product Features

  • Genuine Pentair replacement part
  • Part number: 236770
  • Round O-ring for compatible in-floor cleaning heads
  • Also commonly cross-referenced as part number 548308
  • Designed for compatible G4, G4V, and G4VHP cleaning head assemblies
  • Helps maintain a secure seal between the cleaning head and floor fitting
  • Useful for replacing worn, damaged, flattened, or missing cleaning head O-rings

Compatibility Notes

This O-ring is intended for compatible Pentair In-Floor and former A&A Manufacturing G4, G4V, and G4VHP cleaning head assemblies. Before ordering, verify that your existing cleaning head style and part number match your pool’s current in-floor cleaning system.

Common Signs This O-Ring May Need Replacement

  • The pop-up head does not seat tightly in the floor fitting
  • The O-ring is cracked, brittle, stretched, or flattened
  • The cleaning head has weak pop-up action or inconsistent movement
  • Water appears to bypass around the cleaning head instead of flowing through it properly
  • The head was recently removed for service and the original O-ring is worn or damaged

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Maintenance Tips

  • Inspect the O-ring whenever the cleaning head is removed from the floor fitting.
  • Replace the O-ring if it appears stretched, cracked, flattened, brittle, or damaged.
  • Make sure the O-ring is seated evenly before reinstalling the cleaning head.
  • Use the correct Pentair/A&A cleaning head installation tool to avoid damaging the head, tabs, or floor fitting.
  • If multiple heads in the same zone are not rising properly, also check the valve, pump speed, filter pressure, and overall zone flow.
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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