I use that same canister on my whole house system except I use the charcoal filter to pull sediment and make the water taste better, that is a really inexpensive solution. You can get the canisters for like $26 on sale at Home Depot sometimes. Even buying all the parts from Autogeek, for under $100 bucks you will be very pleased. makes a huge difference. Yesterday morning I wanted to go for a drive, car was filthy, sprayed it with the foam gun, wiped it down with an MF sponge, rinsed and left. It air dried no water spots.