My Reef Creations Orca Pro 4 Protein Skimmer

The MRC Orca Pro 4 is the largest and most powerful model in the MRC Pro Series—engineered for extreme performance on systems up to 4,000 gallons. Built for public aquariums, commercial facilities, and mega-reef enthusiasts, the Pro 4 delivers unmatched nutrient export, superior water clarity, and industrial-grade reliability.

Powered by a custom American-made needle-wheel pump and the exclusive MRC air aspirator, this skimmer produces extraordinary microbubble density for maximum organic removal. Its colossal 14" reaction chamber, combined with precision-engineered cell-cast acrylic and heavy-duty Spears plumbing, ensures exceptional contact time and long-term durability.

If you're running a high-bioload system or require pristine water on massive displays, the Orca Pro 4 is the definitive choice.

Key Features

• Designed for 2,000–4,000 gallon aquarium systems

• Ozone compatible for advanced water clarity

• Huge 14" reaction chamber for extreme dwell time

• Custom USA-made needle-wheel pump included

• Exclusive MRC air aspirator for maximum air intake

• Built with 3/8" cell-cast acrylic base & 1/4" acrylic tubing

• Premium Spears heavy-duty plumbing

• Ideal for public aquariums, fish rooms, and ultra-heavy bioload reef systems

Specifications

• System Capability: 2,000–4,000 gallons

• Total Height: 60"

• Footprint: 29" x 29"

• Water Inlet: 2"

• Reaction Chamber Diameter: 14"

• Gate Valve: 2" (standard)

• Recommended Feed Rate: 1,000–2,000 GPH

• Main Pump: MRC PROIV NW pump included

• Additional Parts Needed: Feed pump (not included)