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Water Supply Connection :
Catalytic Carbon Upgrade :

COMPACT III (5) Stage RODI Reefkeeper with DI Bypass & Handheld TDS Meter. This is a complete RODI system which is small size, fits under most sinks, clear filter sumps, RO only port for filling drinking water jugs and a hand held digital TDS meter.


*Upgrading to a Catalytic Carbon stage removes on average 5 times more Chloramines than any carbon block on the market (including the ones specifically designed to "bust" chloramines). The option above adds Catalytic Carbon cartridge in place of 5 micron carbon block.



Standard Features

 Fully featured, small size, fits under most sinks, clear filter sumps, RO only port for filling drinking water jugs and a hand held digital TDS meter 

The Compact III is a five stage RODI Reefkeeping system equipped with a 100 GPD FilmTec membrane for truly great water quality and production rates.


DI Bypass, RO only port, Fast flush valve 

The Compact III uses five (5) stages of filtration and purification.

Stage 1 Heavy duty, standard industry size (10 Micron) Poly Pro Sediment filter

Stage 2 Cocunut Genuine Gem 5 Micron Carbon block acid washed filter

Stage 3 Coconut Gem 1 Micron Carbon block filter; that removes the remaining chemicals and chlorine. This filter is rated for 3,000 gallons. Used to strip any remaining chlorine/chloramines missed by stage 2.

Stage 4 100 GPD FilmTec Membrane

Stage 5 In-line DI cartridge

A DI Bypass valve, RO only valve, a sample port for water testing directly from membrane output or as a source for RO only water without the DI. A Fast Flush Flow Restrictor all come standard on this unit.

Included is our complete high quality installation hardware kit with instructions. 

Reefkeeping requires the reduction / removal of chemicals, chloramines, bacteria, virus, salts, minerals, heavy metals from top off and make up water. You need and want zero TDS and chemical free water.

Standard Features:

All hardware including RO Only Valve and DI Bypass Assembly installed.

Push-in fittings, eliminating the need for tools, tape or glue. "Plug and play."

Automatic Shut-Off Valve comes pre-installed

SV-6 supply valve, drain saddle, filter wrench, in line ball valve and 24 feet of 1/4 inch tubing.

Detailed instructions.

Dimensions and Weight

Dimensions: 19" x 16" x 6"

Weighs: 16 pounds


Compact III Reefkeeper Diagram
Compact III Installation Instructions
How to Change Filters
How to use Push In Quick Connect fittings
Trouble Shooting Guide