Waterway 2" Heater Split Nut – 400-5161

🔧 Essential Replacement Part for Waterway 2" Heater Assemblies (2012+)

The Waterway 2" Heater Split Nut (Part #400-5161) is a precision-engineered replacement component designed to secure 2" unions on Waterway spa and pool heater assemblies manufactured in 2012 and later. This split nut ensures a tight, leak-proof seal where the heater tube connects to plumbing unions, maintaining optimal operation and extending equipment life.

• 💪 Heavy-Duty Construction – Made of reinforced, high-temperature plastic for long-lasting durability
• 🔩 Easy to Install – Two-piece design allows convenient replacement without removing plumbing
• 🛠️ Perfect Fit – Designed specifically for Waterway 2" heater assemblies (2012 and newer)
• 💧 Prevents Leaks – Creates a secure, water-tight connection at heater union joints

Compatibility:

• Fits Waterway 2" heater assemblies from 2012 and newer
• Can also replace older Waterway split nuts with the same diameter and thread pattern

Directions for Use:

1. Turn off power to the spa or pool heater and allow to cool.
2. Remove the old/damaged split nut by unscrewing both pieces.
3. Position the new split nut around the union and hand-tighten both sides evenly.
4. Ensure a snug fit to prevent leaks, but do not overtighten.

⚠️ Note: Always check your heater’s model and year for compatibility before ordering. For questions on installation or replacement, consult your Waterway heater manual or contact a pool & spa professional.

🛒 Premier Pool & Spa offers a complete range of Waterway replacement parts and fittings. Keep your heating system running smoothly—add the Waterway 2" Heater Split Nut (400-5161) to your maintenance kit today!