Capacity of a Water Deionizer
How Much Water Will I Get?
Click your deionizer to see how many gallons of pure water you get per resin fill at your water's TDS, and what it costs per gallon.
Standard Deionizers
Mixed Bed OTG2-SDI
Single refill kit: $90.00
| Your TDS (ppm) | Gallons per fill | Cost per gallon |
|---|---|---|
| 100 | 560 | $0.161 |
| 150 | 373 | $0.241 |
| 200 | 280 | $0.321 |
| 250 | 224 | $0.402 |
| 300 | 187 | $0.482 |
| 350 | 160 | $0.562 |
| 400 | 140 | $0.643 |
| 500 | 112 | $0.804 |
Mixed Bed DBL OTG2-SDDI1
Single refill kit: $155.00
| Your TDS (ppm) | Gallons per fill | Cost per gallon |
|---|---|---|
| 100 | 1,120 | $0.138 |
| 150 | 747 | $0.208 |
| 200 | 560 | $0.277 |
| 250 | 448 | $0.346 |
| 300 | 373 | $0.415 |
| 350 | 320 | $0.484 |
| 400 | 280 | $0.554 |
| 500 | 224 | $0.692 |
Dual Bed OTG2-DDI
Single refill kit: $112.00
| Your TDS (ppm) | Gallons per fill | Cost per gallon |
|---|---|---|
| 100 | 1,261 | $0.089 |
| 150 | 841 | $0.133 |
| 200 | 631 | $0.178 |
| 250 | 504 | $0.222 |
| 300 | 420 | $0.266 |
| 350 | 360 | $0.311 |
| 400 | 315 | $0.355 |
| 500 | 252 | $0.444 |
Dual Bed Double
Single refill kit: $210.00
| Your TDS (ppm) | Gallons per fill | Cost per gallon |
|---|---|---|
| 100 | 2,522 | $0.083 |
| 150 | 1,682 | $0.125 |
| 200 | 1,261 | $0.167 |
| 250 | 1,009 | $0.208 |
| 300 | 841 | $0.250 |
| 350 | 721 | $0.291 |
| 400 | 631 | $0.333 |
| 500 | 504 | $0.416 |
Tri-Bed OTG2-TDI
Single refill kit: $150.00
| Your TDS (ppm) | Gallons per fill | Cost per gallon |
|---|---|---|
| 100 | 1,868 | $0.080 |
| 150 | 1,245 | $0.120 |
| 200 | 934 | $0.161 |
| 250 | 747 | $0.201 |
| 300 | 623 | $0.241 |
| 350 | 534 | $0.281 |
| 400 | 467 | $0.321 |
| 500 | 374 | $0.401 |
Business Deionizers
Mixed Bed Business OTG2-SDIL
Single refill kit: $265.00
| Your TDS (ppm) | Gallons per fill | Cost per gallon |
|---|---|---|
| 100 | 2,240 | $0.118 |
| 150 | 1,493 | $0.177 |
| 200 | 1,120 | $0.237 |
| 250 | 896 | $0.296 |
| 300 | 747 | $0.355 |
| 350 | 640 | $0.414 |
| 400 | 560 | $0.473 |
| 500 | 448 | $0.591 |
Dual Bed Business OTG2-DDIL
Single refill kit: $380.00
| Your TDS (ppm) | Gallons per fill | Cost per gallon |
|---|---|---|
| 100 | 5,045 | $0.075 |
| 150 | 3,363 | $0.113 |
| 200 | 2,522 | $0.151 |
| 250 | 2,018 | $0.188 |
| 300 | 1,682 | $0.226 |
| 350 | 1,441 | $0.264 |
| 400 | 1,261 | $0.301 |
| 500 | 1,009 | $0.377 |
Tri-Bed Business OTG2-TDIL
Single refill kit: $682.00
| Your TDS (ppm) | Gallons per fill | Cost per gallon |
|---|---|---|
| 100 | 7,473 | $0.091 |
| 150 | 4,982 | $0.137 |
| 200 | 3,736 | $0.183 |
| 250 | 2,989 | $0.228 |
| 300 | 2,491 | $0.274 |
| 350 | 2,135 | $0.319 |
| 400 | 1,868 | $0.365 |
| 500 | 1,495 | $0.456 |
Cation/Anion/Mixed Bed
Single refill kit: $682.00
| Your TDS (ppm) | Gallons per fill | Cost per gallon |
|---|---|---|
| 100 | 7,285 | $0.094 |
| 150 | 4,856 | $0.140 |
| 200 | 3,642 | $0.187 |
| 250 | 2,914 | $0.234 |
| 300 | 2,428 | $0.281 |
| 350 | 2,081 | $0.328 |
| 400 | 1,821 | $0.374 |
| 500 | 1,457 | $0.468 |
Ultra Deionizers
Mixed Bed Ultra OTG2-SDILU
Single refill kit: $397.00
| Your TDS (ppm) | Gallons per fill | Cost per gallon |
|---|---|---|
| 100 | 3,360 | $0.118 |
| 150 | 2,240 | $0.177 |
| 200 | 1,680 | $0.236 |
| 250 | 1,344 | $0.295 |
| 300 | 1,120 | $0.354 |
| 350 | 960 | $0.414 |
| 400 | 840 | $0.473 |
| 500 | 672 | $0.591 |
Dual Bed Ultra OTG3-DDILL
Single refill kit: $570.00
| Your TDS (ppm) | Gallons per fill | Cost per gallon |
|---|---|---|
| 100 | 7,567 | $0.075 |
| 150 | 5,045 | $0.113 |
| 200 | 3,783 | $0.151 |
| 250 | 3,027 | $0.188 |
| 300 | 2,522 | $0.226 |
| 350 | 2,162 | $0.264 |
| 400 | 1,892 | $0.301 |
| 500 | 1,513 | $0.377 |
Tri-Bed Ultra OTG2-TDILL
Single refill kit: $1,023.00
| Your TDS (ppm) | Gallons per fill | Cost per gallon |
|---|---|---|
| 100 | 11,209 | $0.091 |
| 150 | 7,473 | $0.137 |
| 200 | 5,605 | $0.183 |
| 250 | 4,484 | $0.228 |
| 300 | 3,736 | $0.274 |
| 350 | 3,203 | $0.319 |
| 400 | 2,802 | $0.365 |
| 500 | 2,242 | $0.456 |
Save more: Cost per gallon is based on a single refill kit. Larger refill kits lower your cost per gallon, and some systems come with extra refills.
The effectiveness of the DI process is determined by measuring the resistivity/conductivity of the deionized water, many times measured in parts per million (PPM). Deionizer water quality will vary with the type of resin, feed water quality, flow, efficiency of refill, remaining capacity, temperature, etc.
The total dissolved solids (TDS) of the water source will help to determine local capacity of your unit and output of our deionizer to indicate when change-out is necessary. This is easily accomplished with our simple-to-use meter provided with the unit. The frequency for refilling is depends on the TDS of the water source, flow rate, and the gallons used per application.
