eBay

Yea, so I don't want to be one of those people that lists a cannonball on eBay and blows up half of the post office. So can anyone tell me what I have here. Going off the weight of 4.8lbs, and the 3 1/4" diameter, I would say it's just a solid chunk ...

A couple of the wires got loose on the back, not sure where the remaining 2 wires go. It goes to a century sp3210z2me If you don't know how to hook it up, any idea how to find out? I could try taking it to a pool shop.