Looks like a 4-stage system with an RO membrane. Should work fine. I have a similar 5-stage system with small storage tank like the system you're looking at has. Works great. BTW, they work better at higher pressures. Check out the manual when you get one and see what pressures it operates best at. It might be worth investing in a pump to increase your line pressure an up your yield. Otherwise you can produce a lot of waste water.