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When service parts are missing or worn
The 34-0203D is a practical service part when a compatible Hydro-Quip system needs a correct ECO2 or ECO3 temperature sensor to restore accurate monitoring
replacing a worn element or heater assembly
In field repairs
Supports cleaner installation and protection logic
Maytronics Dolphin Power Supply w/Timer (9995678-US-ASSY) intermatic When service parts are missingA power supply with timer provides the operating power and timed control support a compatible robotic cleaner needs to function, and this Maytronics Dolphin US version uses the 9995678 US ASSY reference. Combined power and timer assemblies are important because they support both cleaner operation and more convenient cycle management in one unit. This assembly has practical value because replacing the correct Maytronics power supply helps preserve