Description
IceCap 150 GPD RO/DI System — High Output, High Efficiency
A major step up in both output and efficiency — built for reef keepers whose systems have outgrown entry-level RO/DI units.
Larger displays and multi-tank setups need more than just bigger output — they need a system that doesn't waste gallons doing it. The IceCap 150 GPD System delivers up to 150 gallons of pure, 0 TDS water per day at a 1.5:1 waste-to-product ratio, significantly more water-efficient than the 75 and 100 GPD models (3:1 ratio), so you get more purified water per gallon that goes down the drain.
It shares its footprint and pressure requirements with our top-of-the-line 200 GPD system — the same reliable platform, just tuned for a slightly lower daily output.
Why Reefers Choose the IceCap 150 GPD
- 150 GPD output — built for larger displays and multi-tank systems
- 1.5:1 waste ratio — dramatically more water-efficient than the 75 and 100 GPD models
- Dow Filmtec membrane — 96–98% typical salt rejection at 65 PSI
- Color-changing DI resin — see exactly when it's time to refill, no guesswork
- Auto shut-off valve — stops water flow automatically once storage is full, no wasted water or flooded floors
- No electricity required — runs entirely on household water pressure (65–80 PSI)
- Same compact footprint as the 200 GPD — 16" x 6.5" x 18", no extra space required for the efficiency upgrade
Built For
- Larger reef displays and multi-tank systems with higher water demand
- Hobbyists on metered or well water who want the best waste ratio without going to the top-capacity model
- Reef keepers frustrated by how much water entry-level RO/DI systems waste
- Anyone with 65–80 PSI supply (or already running a booster pump) ready to maximize efficiency
What's Included
Auto shut-off valve, manual flush flow restrictor, glycerin-filled pressure gauge, refillable DI cartridge, and all installation fittings and tubing — everything you need to get up and running.
Specs at a Glance
| Spec | Detail |
| Model | IC-RI150 |
| Output | 150 GPD |
| Dimensions | 16" x 6.5" x 18" (L x W x H) |
| Waste Ratio | 1.5:1 |
| Salt Rejection | 96–98% |
| Membrane | Dow Filmtec (150 GPD spec) |
| Water Pressure Required | 65–80 PSI |
| Power Required | None |
| Filter/Canister Size | Standard 10" |
| Fittings | 1/4" push-connect |
Need even more daily output in the same footprint? The 200 GPD uses a higher-capacity membrane for more output at the same 1.5:1 waste ratio — worth a look if production volume is your priority.
Standard 10" canisters and 1/4" push-connect fittings mean replacement filters are always easy to find — no proprietary parts, no supply headaches down the line.
Backed by CoralVue's standard warranty. Questions before you buy? Contact us — we run these systems ourselves at our own coral farm.
Compare IceCap RO/DI Systems by GPD
| 70 GPD | 100 GPD | 150 GPD | 200 GPD | |
| Model | IC-RI75 | IC-RI100 | IC-RI150 | IC-RI200 |
| Best For | Nano & small setups | Growing tanks, frequent WCs | Larger displays, multi-tank | Frag farms, high-volume ops |
| Waste Ratio | 3:1 | 3:1 | 1.5:1 | 1.5:1 |
| Salt Rejection | 96–98% | 96–98% | 96–98% | 96–98% |
| Membrane | Dow Filmtec TW30-1812-75 | Dow Filmtec TW30-1812-100HP | Dow Filmtec (150 GPD spec) | Dow Filmtec TW30-1812-100HP |
| Water Pressure | 65–80 PSI | 65–80 PSI | 65–80 PSI | 65–80 PSI |
| Dimensions | 16" x 6.5" x 18" | 16" x 6.5" x 18" | 16" x 6.5" x 18" | 16" x 6.5" x 18" |
| Power Required | None | None | None | None |
Not sure which size is right for you? As a rule of thumb: match your GPD to roughly 3–5x your weekly water change volume so your system keeps up without running constantly. Low incoming pressure? Every model pairs with the IceCap Booster Pump Kit to hit peak output.
Warranty & Support
CoralVue and IceCap guarantee this product to be free from defects in material and workmanship. View full warranty details →
Have a question or need to submit a warranty claim? Visit the CoralVue Support Portal →