For Aqua-Star, the results separate the EVO2 dress-ring replacement from retrofit options. The documented options use 12 V AC.
These are the options we found in the available evidence. Open one to check the fit, conditions and source before you buy.
The Aqua-Quip EVO2 replacement kit instructions explicitly say it mounts on the original Aqua-Star or EVO2 dress ring.
Before you buy: Mounts on the original Aqua-Star or EVO2 dress ring using the replacement-kit hardware.
Listed for: Concrete, Fibreglass pool; 12 V AC supply.
Aqua-Quip's guide identifies EvoMAX or EVO2 as retrofit options for Aqua-Star halogen concrete.
Before you buy: Aqua-Quip's retro-fit configuration for Aqua-Star concrete; verify the selected EvoMAX order code.
Listed for: Concrete pool; 12 V AC supply.