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Plastic Reverse Osmosis Tanks with Stainless Steel Connector 0.5 Gallon
Passed NSF Certificate
RO tanks are interchangeable. You don't have to replace the tank on your RO unit with one of the same brand or same size.
If you want more capacity, it's usually easier and more economical to use two (or more) standard-sized tanks rather than a large tank. To join two tanks, all you need is a single tee and some tubing. The tanks don't need to be the same size or the same style. They will interact perfectly together.
Some of the tank's inner capacity is taken up by air and part is taken up by the bladder. Therefore, for practical purposes, the stated volume in gallons of the tank is about twice what the tank will actually hold in terms of usable water. You'll get about two gallons of usable water from a four gallon tank. This will vary according to your inlet water pressure, the temperature of the water, the condition of the membrane and prefilter of your RO unit, and a few other variables. But don't expect four gallons of water from a four gallon tank. On the other hand, two gallons is a lot of water unless you're filling an aquarium or hosting a dinner party for 18.
| Tank Description | Assumed Capcity,On Average |
| 0.5 Gallon Tank | 0.15 gallons |
| 1.0 Gallon Tank | 0.40 gallons |
| 2.0 Gallon Tank | 0.93 gallons |
| 3.0 Gallon Tank | 1.85 gallons |
| 4.0 Gallon Tank | 2.78 gallons |
| 10.0 Gallon Tank | 5.56 gallons |
| 15.0 Gallon Tank | 7.54 gallons |
| 20.0 Gallon Tank | 9.52 gallon |
Plastic Reverse Osmosis Tanks with Stainless Steel Connector 0.5 Gallon