I am building a spa with a used tub I got, so I'm a bit confused about a few things. I would like to buy one of those equipment packs that include the heater, blower, pump and control pack, but it seems like I could buy each part seperately for cheaper. What I am worried about is the connections.

Can anyone please tell me what the different types of connections are for these things (to connect to control pack)?

Also, if I buy a part with a certain type of conection, can I simply change out the connections to fit my control pack?

Also, If I am going to connect everything to the control pack, does it all need to be the same voltage? Or does that only matter to the breakers?

I would like run the heater on 240V and the pump and blower on 120V if possible on 2 seperate breakers, is this ok?

Thanks for any help!