AquaStar Star 18" Sq Main Drain Cover [4x9] [w Fr] [White] [VGB] (P18101) airsupply Heaters in this configuration are Heaters in this configuration are useful when the control setup already accounts for pressure monitoring elsewhere in the system and the replacement needs to match that arrangement Clear unit is designed for 230 volt applications using the 0605 300001 reference This replacement is especially useful when the original cover and frame have worn together or when the existing assembly no longer provides the finished look or service confidence you want The white finish helps maintain a bright and consistent appearance around the drain area