McDonnell & Miller 150S-HD Controller

HOw do I file / send resale cert. CAlifornia.

Please register for an account on our website then email your resale certificate to admin@gsistore.com with the same email address used to register. We will update your account to tax exempt after reviewing the info. Thanks.

Hi What is the difference with 157 R and 157 S

157S-R is the direct replacement for 157-R (SNAP SWITCH VS MERCURY SWITCH)

https://www.gsistore.com/products/mcdonnell-miller-157s-r-controller

https://www.gsistore.com/products/mcdonnell-miller-157s-controller

You can check what's the differences.