Pentair IntelliFlo3 Union Kit 2" & 2.5" | 410028
Pentair
SKU: 410028Z
Pentair 410028 Union Kit (2" / 2-1/2") for IntelliFlo3 & IntelliPro3 3 HP Pumps
The Pentair 410028 is an OEM union kit designed to connect compatible Pentair IntelliFlo3 VSF and IntelliPro3 VSF 3 HP pump ports to common pool plumbing sizes. This kit provides union connections for 2" and 2-1/2" plumbing so you can match your existing suction/discharge piping while keeping the pump service-friendly (easy removal without cutting pipe).
Key Details
- Manufacturer: Pentair
- Part Number: 410028 (also commonly listed as 410028Z)
- Product Type: Pump union kit
- Pipe Size Compatibility: 2" and 2-1/2"
- Application: IntelliFlo3 / IntelliPro3 3 HP pump union connections
Compatible Pump Models (Common Listings)
- IntelliFlo3 VSF / IntelliPro3 VSF 3 HP pump models commonly referenced as: 011075, 011076, 011077, 011078
What This Kit Does
- Provides a sealed, removable connection between the pump and your plumbing.
- Lets you choose 2" or 2-1/2" plumbing alignment based on your existing pipe size.
- Helps reduce future labor by allowing pump removal for service without replumbing.
What’s Typically Included
- Union connection components to adapt to 2" and 2-1/2" plumbing (as supplied by Pentair)
- Sealing gaskets/O-rings for leak-free union connections (as supplied by Pentair)
When to Replace
- Cracked or stripped union nuts that won’t tighten securely
- Warped sealing surfaces or persistent weeping at the union connection
- Missing or damaged union seals/O-rings
- Replumbing/retrofit where the correct IntelliFlo3/IntelliPro3 3 HP unions are needed
Installation Notes
- Confirm your pump model and port size before ordering to ensure correct fit.
- Clean union sealing surfaces and ensure the gasket/O-ring is seated evenly before tightening.
- Hand-tighten first, then snug as needed; overtightening can distort seals and cause leaks.
- After startup, recheck unions once the system is fully primed and running under normal pressure.
Maintenance Tip
If a union starts dripping, shut the system off and inspect the seal for debris, flattening, or twisting. Cleaning the sealing surfaces and replacing the union seal is often all that’s needed to restore a leak-free connection.
Related Products (Aqua Pool Supply)
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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