Zodiac - LM2/D barrel union set - R0737200

Zodiac – LM2/D barrel union set – R0737200

The Zodiac R0737200 LM2/D Barrel Union Set is an official replacement union set designed for use with Zodiac LM2 and LM2/D salt chlorination systems. The set includes two 1-1/2 inch barrel unions complete with nuts and O-ring seals, providing everything needed to create a secure, leak-proof connection between the chlorinator cell and the pool pipework. As a genuine Zodiac spare part, it ensures full compatibility and reliability within your existing Zodiac salt chlorination installation.

Barrel unions are a critical component in any salt chlorinator installation. They allow the electrolytic cell to be easily removed for cleaning or replacement without disturbing the surrounding pipework. Each union in this set is manufactured to precise tolerances to mate correctly with the LM2/D cell body, and the included O-ring seals ensure a watertight joint under normal pool system pressures. The 1-1/2 inch connection size matches standard pool plumbing used widely across residential and light commercial pool installations. This set replaces the previous part number W040931, so owners of older Zodiac systems can order with confidence that this is the correct current replacement.

Technical details and compatibility

This union set is specifically engineered for the Zodiac LM2 and LM2/D salt chlorination product range, also marketed under the Clearwater brand in certain markets. The set contains two complete unions — each comprising a barrel body, threaded nut, and O-ring seal — so both ends of the chlorinator cell can be serviced in a single purchase. The unions are sized at 1-1/2 inches, aligning with the standard pipe diameter used in the majority of domestic pool filtration circuits. The compact dimensions and low weight of the set make it straightforward to handle and install without specialist tools.

Suitability and application

This replacement union set is suitable for domestic swimming pools equipped with a Zodiac LM2 or LM2/D salt water chlorination system. It is the correct spare part to order when existing unions show signs of wear, cracking, or leaking, or when the chlorinator cell is being replaced and fresh unions are recommended. Pool owners carrying out routine maintenance or professional pool technicians servicing Zodiac salt systems will find this set provides a complete, ready-to-fit solution. It is not intended for use with other brands or non-LM2 series Zodiac chlorinators.