The Hurlcon hi limit sensor 70° is a safety device for your heater and must be replaced if it becomes faulty. The hi limit sensor 70° is available for the HX 70, HX120, WX75, WX120, JX130, JX160, MX125, MX150, MX200, MX250, MX300, MX400 and MX500 OLDER style gas pool and spa heaters. The hi limit sensor 70° were originally blue or beige in colour.
PLEASE NOTE: Suits heater models between years 2000 – 2012. This is not for heaters with plastic in/outlet manifolds.