Pentair IntelliFlo3 3" Union Kit | 410029
Pentair
SKU: 410029
Pentair 410029 3" Union Kit for IntelliFlo3 / IntelliPro3 3 HP Pumps
The Pentair 410029 is an OEM 3" union kit designed for compatible 3 HP Pentair IntelliFlo3 VSF and IntelliPro3 VSF pump installations. This kit provides the union connections needed to plumb a 3" suction and discharge line to the pump while maintaining a service-friendly connection point for future maintenance.
Key Details
- Manufacturer: Pentair
- Part Number: 410029
- Product Type: Pump union kit
- Pipe Size: 3"
- Common Use: 3" union set for 3 HP IntelliFlo3 / IntelliPro3 pump plumbing connections
What’s Included
- (2) 3" pump unions
- Seals/O-rings for the union connections (for a watertight seal when properly installed)
Compatible Applications
- Pentair IntelliFlo3 VSF 3 HP pump configurations that specify a 3" union kit
- Pentair IntelliPro3 VSF 3 HP pump configurations that specify a 3" union kit
What This Kit Does
- Provides a secure, serviceable connection between the pump ports and your 3" plumbing.
- Helps support high-flow installations by matching 3" plumbing where applicable.
- Makes future pump removal/service easier without cutting plumbing.
When to Replace
- Union nuts are cracked, stripped, or no longer tighten securely
- Union sealing surfaces are damaged or warped
- Persistent weeping/leaks at the union connection after replacing the seal/O-ring
- Retrofit/replumb project where the correct 3" pump unions are needed for a proper connection
Installation Notes
- Confirm your installation uses 3" plumbing and that your pump configuration calls for 3" unions.
- Ensure the seal/O-ring is clean, seated evenly, and free of debris before tightening.
- Hand-tighten union nuts evenly; avoid overtightening which can distort sealing surfaces.
- After startup, recheck for leaks once the system is fully primed and running under normal pressure.
Related Products (Aqua Pool Supply)
- Pentair IntelliFlo3 replacement parts
- Pentair IntelliPro3 replacement parts
- Pentair 3" pump union O-rings and seals
- Pentair union O-rings (diamond seal style)
- IntelliFlo3 seal kits
- IntelliFlo3 pump unions and tailpieces
Maintenance Tip
If a union connection starts to drip, shut the system down and inspect the seal/O-ring for flattening, debris, or twisting. Cleaning the sealing surfaces and replacing the seal/O-ring is often all that’s needed to restore a leak-free connection.
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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