for those of u that would like to add surge suppression, but don't want to part with $275+, may want to consider this approach.
Eaton Cutler-Hammer makes a whole house surge suppressor chspmicro2 that becomes available from lowes or home depot from time to time. price is from $50 to $75. in addition, u will need a double pole type BR 15 amp breaker. make room in ur box so that the new breaker can attach to each hot leg. install the breaker, attach to it and that is it. the suppressor works even ur adapted to 110 v.
i did a quick wire in just to see if it would check ok before i did the final installation.
mounted and showing that it is active. i am adapted to 110V.
i'm slow and it took me abt an hour to install. most of that was spent rearranging breakers.
i believe i could have it out and put the old breakers back in in less than 30 min.