Waterway Gasket, 2" O-Ring Rib - Heater | 711-4030
Waterway
SKU: WWP7114030
Waterway 711-4030 2″ Heater Tailpiece Gasket / O-Ring
Part # 711-4030 — a replacement 2″ heater union gasket designed to seal tailpiece connections on pool and spa heaters or plumbing unions. This gasket helps ensure a watertight seal preventing leaks at heater or pump tailpiece unions.
Key Features
- Designed for 2″ heater plumbing unions and tailpiece connections requiring a 2–1/8″ ID sealing surface.
- Constructed with a molded O-ring rib to provide a secure seal under pressure and plumbing stress.
- Flat-on-one-side, ribbed-on-the-other design for proper sealing seat between union parts.
- Chemical- and water-resistant material suitable for pool and spa heater environments.
- Compact gasket profile — easy to install without disassembly of major equipment.
Typical Applications
Used when a 2″ heater or pump union shows signs of leaking, water seepage, or pressure loss. Also recommended as a preventive maintenance part when servicing heater plumbing unions, tailpieces, or whenever the union is opened for cleaning or inspection.
Installation & Compatibility Notes
Before installation, turn off pump or heater and relieve all water pressure. Drain any remaining water from the union. Remove the old gasket and clean sealing surfaces thoroughly. Place the 711-4030 gasket inside the union body — flat face toward one side, ribbed face toward the mating tailpiece. Re-assemble the union, tighten evenly to manufacturer torque specs, and test for leaks under pressure.
Why Replace the Gasket?
Over time, gaskets can become brittle, compressed, or deformed — leading to leaks, loss of pressure, or water damage. Installing a fresh 711-4030 gasket restores proper sealing integrity and helps prevent leaks in heater or pump plumbing systems.
Maintenance Tips
- Inspect union gaskets annually — especially after winterizing or extended shutdown — and replace if hardened or deformed.
- Ensure sealing surfaces are clean, dry, and free of debris before installing the new gasket to avoid sealing issues.
- Avoid overtightening unions — snug and evenly tightened is usually sufficient to keep a seal without damaging the gasket.
- Keep a spare 711-4030 gasket on hand for fast repairs when unions need servicing or leaks appear.
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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