I've seen a bit of variation between the prices of different brands of solar heaters. Is there really a significant difference?
I was looking at this:
http://cgi.ebay.com/8-4-x-12-Inground-P ... 286.c0.m14
along with this controller:
http://cgi.ebay.com/GL-235-pool-solar-p ... 286.c0.m14
This one comes with the controller for less $$.
http://cgi.ebay.com/8-Panel-Inground-Po ... 286.c0.m14
This one that comes with a controller for almost double the price.
http://cgi.ebay.com/8-4x12-Swimming-Poo ... 286.c0.m14
Are any of the above good? Are there any other good options out there for a decent price?