Aquasafe Maximus 100 GPD
^ The Ironic thing is that aquasafe systems is located in Vancouver but only deal with strictly shipping, no pick ups what so ever. When I bought mine off ebay it was around the same price after shipping and you have to wait 2 weeks. Because they're in North Van they should atleast open buisness to customers that live in the same city you would think!
The last part you wont need unless you plan on drinking and cooking with it aswell as use on your tank I have used it with and without with no ill effects. It doesnt add tds back into your water what it does is give it taste as rodi taste quite bad.