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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: 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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