Pentair WhisperFlo XF Union Kit | 410020
Pentair
SKU: 410020
Pentair XF Series Pump Union Kit Without Tap, 2-1/2" (Fits 2-1/2" & 3" Plumbing) | 410020
The Pentair 410020 is a genuine XF Series union kit without a tap used to connect compatible Pentair XF pool pumps to your plumbing with a secure, service-friendly union connection. This kit is designed to work with both 2-1/2" and 3" PVC plumbing and is commonly used on Pentair WhisperFlo XF and IntelliFlo XF style pumps (model/revision dependent).
Key Features
- 2-1/2" union kit (no tap): union adapters are supplied without a threaded port/tap.
- Works with 2-1/2" and 3" plumbing: glues inside 2-1/2" pipe or glues over the outside of 3" pipe (installation dependent).
- Service-friendly: unions allow pump removal/maintenance without cutting plumbing.
- Leak-resistant seals: includes new seals designed for proper union sealing when assembled correctly.
Compatibility
- Pentair WhisperFlo® XF pool pumps
- Pentair IntelliFlo® XF variable speed pumps (commonly referenced for later revisions)
- Pentair IntelliPro® XF variable speed pumps
- Tip: Pump unions can vary by model year/revision. Confirm your pump series is XF and that your parts diagram calls for 410020.
What’s Included
- (2) Union nuts
- (2) Union adapters (without tap)
- (2) Clip locking rings
- (2) Diamond seals
Common Reasons to Replace
- Cracked or stripped union nuts/couplers
- Persistent drips at the pump union connection due to worn sealing surfaces
- Pump replacement or pad replumb where new unions are needed for a clean install
- Upgrading to 3" plumbing while keeping an XF pump connection serviceable
Installation Notes
- Dry-fit everything first to confirm alignment and pipe engagement depth.
- Use pool-rated PVC primer/cement on the slip connections and allow full cure before running the pump.
- Hand-tighten union nuts evenly; do not over-tighten plastic unions.
- Keep sealing surfaces clean and free of debris; a small piece of grit can cause a slow leak.
Related Products
- Pentair WhisperFlo XF parts
- Pentair IntelliFlo XF parts
- Pentair IntelliPro XF parts
- 3" PVC fittings
- 2-1/2" PVC fittings
- Pool plumbing primer & cement
- Silicone lubricant (O-ring safe)
Maintenance Tips
- Inspect unions seasonally for hairline cracks and re-tighten gently if you notice seepage.
- When opening unions for service, wipe sealing surfaces clean before reassembly to help prevent leaks.
- Support plumbing near the pump to reduce vibration stress on the union connection.
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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