The Magic Plastics 121108025 Split Nut Union is a reliable connection for 2 1/2-inch plumbing and a 3-inch inner diameter heater. This union features both female buttress thread (fbt) and large flange connections for metal housings on either side, meaning it can accommodate 3", 3-1/8" and 2-1/2", 3-1/8" plumbing connections. It is an easy-to-use connection that ensures a tight fit and leak-free installation.

• Heater Union Part Type - Split Nut
• First Plumbing Connection Size - 3", 3-1/8"
• First Plumbing Connection Type - FBT, Large Flange (For Metal Housings)
• Second Plumbing Connection Size - 2-1/2", 3-1/8"
• Second Plumbing Connection Type - FBT, Large Flange (For Metal Housings)

Fitment guidelines:
For 2 1/2-inch plumbing connection and a 3-inch inner diameter heater.

Additional Information:
Alternate part number - 89-238-1042