Up to 4,000 Gallons | Ozone compatible | High Quality 3/8″ Cell Cast Acrylic & 1/4″ Cell Cast Acrylic tube | Needle-wheel technology 

The MRC Orca Pro IV is largest model in the MRC Pro Series line of protein skimmers. It is everything you’d expect from a top-of-the-line skimmer. It’s powered by a custom American made pump with our high-power Needle-wheel technology and the exclusive MRC air aspirator. It features a massive 14″ reaction chamber body for unparalleled reaction time & performance. The base is constructed out of 3/8″ cast acrylic; all tube is 1/4″ cast acrylic. All plumbing parts are heavy duty Spears plumbing.

For systems over 2,000 gallons, the Pro IV just can’t be beat. Heavy bio-loads are no match for the Pro IV.

The MRC Pro Series sets a new standard for quality and performance.

Specs