The Pentair 351157 1.5" Black Union Kit is a replacement plumbing connection assembly designed for use with SuperFlo and SuperMax pool pumps. This union kit provides a serviceable 1.5-inch connection point between the pump housing and PVC plumbing, allowing easy disassembly for maintenance or repair. Constructed from durable, chemically resistant materials with a black finish, it restores secure, leak-resistant pump plumbing in compatible systems.

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Key Features

• 1.5-inch union kit engineered for SuperFlo and SuperMax pump plumbing connections.
• Provides a secure, serviceable connection between pump housing and PVC pipe.
• Black finish for cohesive appearance with pump and plumbing components.
• Constructed from durable, pool-grade materials resistant to chemicals and weathering.
• Enables easy disassembly for maintenance, repair, or wet end servicing.
• Ideal replacement part for worn, cracked, or leaking union connections.

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Product Overview

The Pentair 351157 1.5" Black Union Kit is a service replacement plumbing assembly used on SuperFlo and SuperMax pool pumps requiring 1.5-inch connections. Installed between the pump volute and return plumbing, this union kit provides a threaded, solvent-free interface that allows quick removal of the pump for routine service or component replacement. The union’s black molding offers a matched appearance with many pump and plumbing systems.

Constructed from chemically resistant polymer and reinforced for structural integrity, the 351157 union kit resists deterioration from sanitizers, UV exposure, and long-term pool use. Its design supports leak-resistant performance under typical circulation system pressures. When properly installed with compatible seals and PVC plumbing, this union kit helps ensure reliable pump connections and simplifies future maintenance tasks in residential pool installations.