Find your parts diagram
Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
Still not sure? Call (818) 818-6559 and we'll find it for you.
The Waterway 2" Heater Split Nut 400-5161B is a durable and essential component designed for securing the plumbing connections in pool or spa heating systems. This split nut, which includes screws for easy installation, is compatible with most 2" heater tubes and ensures a reliable, leak-proof seal. It is made from high-quality PVC, designed for long-lasting performance in pool environments.
-
Designed for 2" Heater Tubes: The Waterway 2" Heater Split Nut 400-5161B is compatible with most 2" heater tubes, providing a secure and reliable connection for pool and spa heating systems.
-
Durable PVC Construction: Made from high-quality, long-lasting PVC, this split nut ensures durability and resistance to wear, even in demanding pool environments.
-
Leak-Proof Seal: Engineered to provide a tight, leak-proof seal, this component is essential for maintaining proper water flow and preventing leaks in pool or spa plumbing systems.
-
Includes Screws for Easy Installation: This split nut comes with screws, making it easy to install and ensuring a firm connection with minimal effort.
-
Reliable and Long-Lasting Performance: Built for longevity, this split nut helps keep heating systems running efficiently, providing a dependable solution for both residential and commercial pool setups.
- (1) Split Nut
- (2) Screws
- Compatible with most 2" heater tubes

