Jandy R0454000 Coupling Nut | 3 Inch | LXi | Legacy | 2 Pack

OEM Jandy Coupling Nut with O-Ring R0454000 is a genuine 3-inch connector kit for maintaining leak-proof seals in Jandy LXi and Legacy LRZE/LRZM heaters. Designed for compatibility with factory systems, this kit includes two heavy-duty coupling nuts and O-rings that create a watertight connection at the heater’s plumbing interface. It ensures safe, stable operation by preventing leaks that can reduce system pressure or cause performance issues. Ideal for replacement during routine servicing, this OEM part supports the long-term reliability and efficiency of your pool or spa heater.

Highlights

• 3-Inch Heater Coupling Kit: Built for secure connection and watertight performance in Jandy heating systems

• All Parts Included for Sealing: Comes with two coupling nuts and matching O-rings to fully restore seal integrity

• Designed for LXi & Legacy Models: Fits 3-inch plumbing on LRZE/LRZM and LXi heaters for easy installation

• Prevents Leaks and Failures: Maintains proper flow and pressure by eliminating points of leakage in the heater system

• OEM Reliability and Fit: Genuine Jandy replacement part guarantees long-lasting performance and accurate fit

Includes

• (2) Coupling Nuts
• (2) O-Rings

Compatibility

• Jandy LXi Heaters
• Jandy Legacy LRZE Heaters
• Jandy Legacy LRZM Heaters

Additional Info

3" Coupling Nut Kit R0454000 – Jandy LXi & Legacy Heater Connections

R0454000 union kit fits LXi 3-inch inlet/outlet plumbing setups

used in repairs and replacements for LRZM and LRZE heaters

Jandy part R0454000 maintains watertight heater seal

part number R0454000 stops leaks where heater unions fail

local pricing available for OEM R0454000 Jandy coupling set

Jandy R0454000 Heater Fitting Kit – Includes Couplings and O-Rings

install R0454000 in LXi or Legacy heater for renewed seal integrity

OEM coupling nut kit R0454000 supports long-term heater operation

2-pack replacement for cracked or worn 3-inch heater unions

R0454000 helps maintain optimal water pressure and heater safety

O-rings included to ensure tight compression and alignment

Heater Union Replacement R0454000 – For LXi & Legacy LRZ Models

R0454000 fits directly on Jandy heater union threads

essential part for secure heater-to-pipe connections

used by pool pros to replace worn Jandy heater fittings

part R0454000 supports proper water flow and heater longevity

includes full hardware for quick and simple installation

Diagram