I have a Compool panel that I've upgraded to EasyTouch Upgrade many years ago. I broke one of the plastic tabs for the bottom right circuit breaker and went looking to the internet for a replacement bus bar. I was able to find Pentair 520281 between $150-$225. And aftermarket bus bars around $75. Once I saw it was made by Siemens, I searched Home Depot and found this item in stock at my local store, it was $66 on sale. I used the bus bar only and recycled everything else. Swapped it out in about an hour. The mounting holes lined up with my Panel box. It works great!

Siemens EQ 125 Amp 8-Space 16-Circuit Main Lug Outdoor Load Center W0816ML1125CU - The Home Depot
Visit the Home Depot to buy EQ 125 amp 8-Space 16-Circuit Main Lug Outdoor Load Center W0816ML1125CU
www.homedepot.com