Feature●?Applicable Models:The thermal regulator replacement kit compatible for Master Temp and Sta-Rite pool spa heaters for most models.●?Replace Part #:Thermal regulator kit replaces for 77707-0010 38000-0007S.Please check if the model number is the same as your car before purchase.●?Superior Material:Thermal regulator kit made of upgraded metal material for long service life.●?Simple Installation:The thermal regulator is easy to install and is located between the water inlet and outlet connections of the manifold. However, it is recommended to have a specialist install it.●?Buy with Confidence:If you buy it, you will get 1 x regulator, 1 x spring and 1 x cap.???2 Years Warranty for you.If you have any problem about the thermal regulator kit, please contact us immediately, we will deal with it for you within 24 hours.Description