Swimables SW-21-350 Pump Union Kit 2" for Pentair SuperFlo & SuperFlo VST
The Swimables Pentair SuperFlo Style Union Kit (SW-21-350) is a replacement 2-inch pump union kit designed for Pentair SuperFlo and SuperFlo VST pool pumps. This kit allows the pump to connect securely to the plumbing system while still providing the ability to disconnect the pump easily for maintenance or service.
Pump unions are commonly used on pool equipment pads because they allow pumps to be removed without cutting plumbing lines. Over time, unions may crack, warp, or develop leaks due to vibration, chemical exposure, or aging seals.
Replacing worn pump unions helps restore a secure plumbing connection and ensures the pump system remains leak-free and serviceable.
Why Pump Union Kits Matter
Union fittings play an important role in pool equipment plumbing. They provide a sealed connection while still allowing pumps to be removed for repair, replacement, or winterization.
When pump unions become worn or damaged, leaks or plumbing stress can occur.
Common issues caused by worn or damaged unions include:
• Water leaks at the pump connection
• Difficulty removing the pump for service
• Cracked union collars or threads
• Worn or flattened union O-rings
Replacing the union kit helps maintain a secure plumbing connection and simplifies pump maintenance.
Designed for Pentair SuperFlo Pumps
This union kit is designed specifically for Pentair SuperFlo and SuperFlo VST pool pumps. The fittings connect to 2-inch plumbing lines, making them suitable for many standard residential pool equipment installations.
The union design allows the pump to be disconnected from the plumbing system without cutting pipes, which simplifies maintenance and pump replacement.
Always confirm compatibility with your pump model before ordering.
Durable Construction for Equipment Pads
The Swimables SW-21-350 union components are manufactured from durable molded PVC materials designed to withstand outdoor pool equipment environments.
The materials are resistant to pressure, vibration, and pool chemical exposure, helping maintain long-term plumbing reliability.
Easy Installation and Pump Removal
Union fittings install directly onto the pump ports and connect to the existing plumbing line. Once installed, the union collar can be loosened to separate the pump from the plumbing when service is required.
This design allows for quick pump removal without cutting or modifying the plumbing system.
Product Specifications
| Specification | Details |
|---|---|
| Product Name | Pump Union Kit |
| Manufacturer | Swimables |
| Part Number | SW-21-350 |
| Pump Compatibility | Pentair SuperFlo & SuperFlo VST |
| Connection Size | 2" Plumbing |
| Application | Pool Pump Plumbing Connection |
| Material | Durable Molded PVC |
| Condition | New |
Related Pool Pump Parts
If you're replacing pump unions, it may also be helpful to inspect other pump components such as pump lids, O-rings, drain plugs, and replacement pump seals. These parts help maintain proper pump performance and prevent leaks around the equipment pad.
Browse our full collection of pool pump parts and accessories to find compatible replacement components for your system.
Why Buy From Benchmark Pool Supply
When you purchase pool pump parts from Benchmark Pool Supply, you're buying from a team that works with pool equipment and plumbing systems every day. We stock service-ready replacement components, ship from U.S. inventory, and help customers select the correct fittings for their equipment.
Our goal is to provide reliable replacement parts, fast shipping, and knowledgeable support so pool owners and service professionals can maintain their pool equipment with confidence.
