Pentair SuperFlo SuperMax 1.5" Union Kit, Black | 351157

Pentair SuperMax Union Kit | SuperFlo / SuperMax / IntelliFlo3 VSF / IntelliPro3 VSF | 351157

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SKU:
351157
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About This Item

The Pentair SuperMax Union Kit (351157) is the OEM replacement 1-1/2" union kit for the Pentair SuperFlo, SuperMax, IntelliFlo3 VSF, and IntelliPro3 VSF pump series.

IMPORTANT: KIT CONTENTS — 2 COMPLETE UNION ASSEMBLIES INCLUDED
This kit includes 2 each of Items 8, 9, and 15 — enough to plumb both the inlet and outlet ports of a single pump. This is a complete kit for one pump installation; do not order this kit expecting a single union.

IMPORTANT: QUANTITY REQUIRED — 2 KITS PER SYSTEM FOR SOME MODELS
For SuperFlo VS, SuperFlo VST, and SuperMax VS variable speed pump models, Pentair parts documentation specifies 2 kits required per pump installation. Verify the quantity needed for your specific model before ordering.

This union kit provides the complete plumbing connection points at the suction and discharge ports of your Pentair pump, allowing the pump to be disconnected from the plumbing system without cutting pipe. Each union assembly accepts 1-1/2" internal slip on the pump port side and 2" external slip on the plumbing side.

Specifications

Pentair Part Number 351157
Part Name SuperMax Union Kit
Connection Size 1-1/2" Internal Slip x 2" External Slip
Quantity Included Kit — 2 each of Items 8, 9, and 15
Unit of Measure Kit

Fits Into

Brand Equipment Line Model / Part Number Notes
Pentair SuperFlo DOE 348190 Replacement parts for Product #348190; includes items 24–26
Pentair IntelliFlo3 / IntelliPro3 VSF IntelliFlo3 1.5 HP models only
Pentair IntelliFlo3 / IntelliPro3 VSF IntelliPro3 1.5 HP models only
Pentair IntelliFlo3 VSF 011065 1.5 HP IntelliFlo3 VSF; 1-1/2" x 2" union kit; includes 2 unions
Pentair IntelliFlo3 VSF 011066 1.5 HP IntelliFlo3 VSF with relay board; 1-1/2" x 2" union kit; includes 2 unions
Pentair IntelliFlo3 VSF 011067 1.5 HP IntelliFlo3 VSF with touchscreen; 1-1/2" x 2" union kit; includes 2 unions
Pentair IntelliFlo3 VSF 011068 1.5 HP IntelliFlo3 VSF with touchscreen and relay board; 1-1/2" x 2" union kit; includes 2 unions
Pentair IntelliPro3 VSF 013065 1.5 HP; 1-1/2" Internal Slip x 2" External Slip union kit
Pentair IntelliPro3 VSF 013066 1.5 HP with relay board; 1-1/2" Internal Slip x 2" External Slip union kit
Pentair IntelliPro3 VSF 013067 1.5 HP with touchscreen; 1-1/2" Internal Slip x 2" External Slip union kit
Pentair IntelliPro3 VSF 013068 1.5 HP with touchscreen and relay board; 1-1/2" Internal Slip x 2" External Slip union kit
Pentair SuperFlo VS/VST SUPERFLO VS Includes items 25–27; 2 kits required per pump
Pentair SuperFlo VS/VST SUPERFLO VST Includes items 25–27; 2 kits required per pump
Pentair SuperMax SUPERMAX VS SuperFlo/SuperMax Union Kit; includes items 25–27; 2 kits required per pump
Pentair SuperFlo VS/VST SUPERFLO VS/VST SuperFlo/SuperMax Union Kit; includes items 25–27; 2 kits required per pump
Pentair SuperFlo 354803S SuperFlo 3/4 HP Single Speed Motor; includes items 8, 9 & 15 (2 of each)
Pentair SuperFlo 354821S SuperFlo 1 HP Single Speed Motor; includes items 8, 9 & 15 (2 of each)
Pentair SuperFlo 354823S SuperFlo 1-1/2 HP Single Speed Motor; includes items 8, 9 & 15 (2 of each)
Pentair SuperFlo 354815S SuperFlo 2 HP Single Speed Motor; includes items 8, 9 & 15 (2 of each)
Pentair SuperFlo 348022 SuperFlo Energy Efficient Single-Speed; 1-1/2" Internal Slip x 2" External Slip; includes 2 unions
...and additional compatible models. Verify your model number with your equipment manual before ordering.

Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering.

Poolaroo Pro Tip

When replacing your union kit, inspect the union O-rings at the same time — they are the most common source of a weeping union connection. If the O-rings show any cracking, flattening, or deformation, replace them before reassembling. Hand-tighten the union nuts only; over-tightening can crack the union body. If you're servicing a SuperFlo VS, SuperFlo VST, or SuperMax VS variable speed pump, note that Pentair documentation specifies 2 kits for a complete installation — confirm your quantity before ordering.

CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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Pentair Pool Products and Parts

About Pentair Pool Products and Parts

Pentair is often considered the "gold standard" for pool professionals, and for good reason. Founded in 1966 (originally by five inventors making high-altitude balloons!), the company has evolved into the global leader in smart, sustainable water solutions. For the DIY homeowner, Pentair represents the intersection of rugged durability and silicon valley-tier technology. They pioneered the Variable Speed Pump revolution with the IntelliFlo®, saving American pool owners millions in energy costs. Today, their ecosystem focuses heavily on automation, allowing you to control your pump, heater, lights, and chemistry from a single app. While they are a favorite among professional builders, their "EC" (E-Commerce) line of equipment allows homeowners to access pro-grade technology with valid warranties for DIY installation.

Why We Trust Pentair Pool Products and Parts
Energy Efficiency Leaders: Recipient of the ENERGY STAR® Partner of the Year award for over a decade; their pumps are designed to pay for themselves in energy savings.

Smart Automation: The Pentair Home App and IntelliCenter systems offer best-in-class control over your pool ecosystem from anywhere in the world.

Professional Pedigree: The brand most often recommended and installed by pool builders for high-end residential pools.

Eco-Conscious: Dedicated to reducing water waste and energy consumption through "Green" technology innovations.

More about Genuine Pentair Pool Parts

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