Buying RO / DI - I know nothing

[mike31154]

I just ordered a system from BWI Plumbing. Decided on them since to the best of my knowledge it's a Canadian company, I was able to order on their website and paid Canadian $. I had also checked out Bulk Reef Supply and Buckeye Field Supply both of whom offer similar products at similar pricing, but once I calculated US$ exchange, shipping and possible brokerage fees, BWI seemed like the best option. The unit I ordered is their 4 stage system with auto shut-off/top-off options. It doesn't come with TDS meter, pressure guage or flush kit like the ones from BRS & BFS, but at just under $200 I thought it was the best bang for the buck. I have a handheld TDS meter and the flush kit, pressure guage etc. can be purchased locally and added on.