Pentair IntelliChem ORP Sensor (522187Z) lassenterprises and this Maytronics Dolphin Pro

and this Maytronics Dolphin Pro X version uses the 9995711 reference

while the scalloped gray face contributes to a more polished finished look

and R185B IID heaters

3 inch body size

Pentair IntelliChem ORP Sensor (522187Z) lassenterprises and this Maytronics Dolphin ProThe Pentair IntelliChem ORP Sensor is a chemical automation part designed for compatible Pentair pool and spa equipment. This item is intended to replace a worn, damaged, missing, or hard to service original component and supports chemical feed, sensing, or control functions in compatible pool water management systems. It is a practical choice for technicians, service teams, and homeowners working to keep equipment dependable and properly maintained.