Raypak Sensor Well, for Models 105A-405, 206-408 | 003765F Plastiflex It uses the Black Optilon

It uses the Black Optilon Synthetic formulation to deliver a consistent

properly sanitized water

Perfect for creating a Mediterranean-inspired retreat in your backyard

Effective in open-air and semi-covered outdoor spaces

Raypak Sensor Well, for Models 105A-405, 206-408 | 003765F Plastiflex It uses the Black OptilonRaypak 003765F Sensor Well Models 105A to 405 and 206 to 408 If your temperature sensor readings are inaccurate or the sensor itself is damaged during removal, the sensor well may be the problem. Corrosion or buildup inside the well can interfere with proper temperature measurement. The sensor well houses the temperature sensor and isolates it from direct water contact while allowing accurate readings. A compromised well can cause false readings,