A-1 Pools & Spas stocks alot of hayward and some pentair parts, fittings etc. (Photo's below) 

***2012 Update***
A-1 Pools & Spas has continued to listen to your requests on becoming the best pool retail store in the area when it comes to stocking parts, we have now expanded our parts selection even more, however if by any chance we do not have your specific part in stock, we can special order it and see it usually with in a couple days.

 See store for additional details or to special order a part.