S,
Here is a website that has a comparison of salt cells...
Compare and Review Saltwater Chlorine Generator Prices and Features
I have a Pentair Automation system and use the Pentair IC40 salt cell... If I did not have automation I would use either the Hayward T15 cell or one of the CircuPool RJ cells...
The bigger the cell the longer it will last, plus it will allow you to use the shortest run time possible. This is important if you have a single speed pump.
If your husband is an average DIY kind of guy, he should not have any problems installing a salt system.
Something to keep in mind is that although salt systems make it easier to maintain a pool, they are not a "set and forget" system. You still have to routinely test your pool and keep the pool water within the TFP standards.
Besides a TF-100, or Taylor K-2206C, test kit you will also need the Taylor K-1766 salt test kit. I suggest you use the K-1766 to test your pool water before adding any salt, as your pool probably already has much more salt than you realize. I find having the Speed-Stir makes using the salt test kit much easier than swirling the test cylinder by hand..
Thanks,
Jim R.