Zettler Relay, Zettler, T-90 Type, SPST, 15vdc, Coil AZ2120-1A-15DF

Ditto see the previous review. Replaced the heater relay on a Balboa made board. This was a upgrade for amps and contact rating vs the failed relay. It was an exact form(pins) and function replacement for the old relay. Avoided $300 for a new board. (or $230 for a refurbished one)

Bought these to repair the neighbors spa control board . They are an exact replacement and work great. If this is why you are purchasing these , you should check your heater also .Very fast shipping !!!

Great works as it should