Pro Series Protein Skimmers
The MRC® Pro Series™ is the perfect union of acrylic engineering perfection and flow technology.

Simple
Capacity
Precision
Detail
Overview
Up to 500 Gallons | Ozone compatible | High Quality 3/8″ Cell Cast Acrylic & 1/4″ Cell Cast Acrylic tube | Needle-wheel technology
The MRC Orca Pro I is the first model in the Pro Series line of protein skimmers. But don’t let that fool you, this is no small toy skimmer. It’s powered by MRC exclusive Needle-wheel and air aspirator technology. It features a large 10″ reaction chamber body for maximum reaction time.
The MRC Pro Series sets a new standard for quality and performance.
Specs
System capabilities: 100-500 gallons
Total Height: 28″
Foot Print: 21.5″ x 20″
Water Inlet: 1 1/2″
ReactIon Chamber: 10″ Diameter
Gate Valve (Standard): 1 1/2″
Recommended Feed Rate: 300-500 GPH
Main Pump: MRC NWF11 pump Included
Necessary Parts: Feed Pump (Sicce Syncra Pro 2200)


Overview
Up to 1,000 Gallons | Ozone compatible | High Quality 3/8″ Cell Cast Acrylic & 1/4″ Cell Cast Acrylic tube | Needle-wheel technology
The MRC Orca Pro II is the second model in the Pro Series line of protein skimmers. The Pro II boasts an extra large bubble plate and a long neck for maximum skimming. It’s powered by MRC exclusive Needle-wheel and air aspirator technology. It features a large 10″ reaction chamber body for maxium reaction time. 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.
The Pro Series sets a new standard for quality and performance.
Specs
System capabilities: 400-1000 gallons
Total Height: 38″
Foot Print: 21.5″ x 20″
Water Inlet: 1 1/2″
Reaction Chamber: 10″ Diameter
Gate Valve (Standard): 1 1/2″
Recommended Feed Rate: 300-900 GPH
Main Pump: MRC NWF11 pump Included
Necessary Parts: Feed Pump (Sicce Syncra Pro 3000)
Overview
*Shown with optional MRC triple-cone washdown system*
The MRC Orca Pro III is the flagship 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 1/3 HP American made pump with our high-power Needle-wheel technology and the exclusive MRC air aspirator. It features a massive 12″ 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.
The Pro III is the public aquarium sweetheart, allowing them to remove larger, less efficient, and less effective skimmers. The Pro III is a fish and SPS lover’s dream come true. If you love a heavy bio load or need pristine waters for your SPS, this skimmer is for you.
The MRC Pro Series sets a new standard for quality and performance.
Specs
System capabilities: 1000-2000 gallons
Total Height: 48″
Foot Print: 26″ x 28″
Water Inlet: 1 1/2″
Reaction Chamber: 12″ Diameter
Gate Valve (Standard): 1 1/2″
Recommended Feed Rate: 700-1000 GPH
Main Pump: MRC PROIII NW pump Included
Necessary Parts: Feed Pump (Sicce Syncra Pro 4000)


Overview
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
System capabilities: 2000-4000 gallons
Total Height: 60″
Foot Print: 29″ x 29″
Water Inlet: 2″
Reaction Chamber: 14″ Diameter
Gate Valve (Standard): 2″
Recommended Feed Rate: 1000-2000 GPH
Water Pump: MRC PROIV NW pump Included
Necessary Parts: Feed Pump (Sicce Syncra Pro 7000)