Boshart FIN1436-251 Insulated x MPT Dielectric Nipple, 1-1/2" x 2"

Boshart FIN1436-251 Insulated x MPT Dielectric Nipple, 1-1/2" x 2"

The Boshart FIN1436-251 is an insulated dielectric nipple built for plumbers and contractors who need to isolate dissimilar pipe materials at a rough-in connection. This fitting transitions from a 1-1/2" insulated female connection to a 2" MPT (male pipe thread) end, making it a practical choice for water heater hookups and other transitions where an electrically isolating fitting is required between piping systems. As with all Boshart insulated nipples, the internal insulating liner is designed to help prevent galvanic corrosion at the joint where two different pipe materials meet, a common failure point in mixed-material plumbing systems. Because this is a rough-in / behind-the-wall style fitting, it is intended to be installed by a licensed plumber or contractor as part of a larger supply or water heater connection assembly, not as a finished, visible component.

Key Features

• Trade Size: 1-1/2" insulated connection x 2" MPT end for transitioning between differently sized supply lines.
• Insulated Design: Internal insulator helps electrically isolate the connection, reducing the risk of galvanic corrosion where dissimilar metals or pipe materials meet.
• MPT Connection: 2" male pipe thread end allows for a direct threaded connection into female-threaded fittings, valves, or water heater ports.
• Rough-In Application: Designed for behind-the-wall or mechanical room installation as part of a supply line or water heater connection assembly.
• Boshart Build Quality: Manufactured by Boshart Industries, a supplier focused on plumbing rough-in and connection products for the trade.

Technical Specifications

• Trade Size: 1-1/2" Insulated x 2" MPT
• Connection Type: Insulated x Male Pipe Thread (MPT)
• Brand: Boshart
• Model: FIN1436-251

Typical Applications

• Water Heater Supply Connections
• Transitions Between Dissimilar Pipe Materials
• Residential and Commercial Rough-In Plumbing
• Mechanical Room and Utility Piping Assemblies
• New Construction and Renovation Plumbing

Why Boshart?

Boshart Industries builds insulated connection fittings intended to help plumbers manage the risks that come with joining dissimilar pipe materials at a single connection point. The FIN1436-251's insulated 1-1/2" x 2" MPT configuration gives contractors a dedicated transition piece for rough-in and water heater connection work, backed by Boshart's focus on plumbing supply and connection products for the trade.