Whale Water Systems BP4772 Gulper Grouper MK3 Fishbox Waste Discharge Pump 12V 4.2 GPM

The Whale Water Systems Gulper Grouper MK3 is a heavy-duty fishbox and waste discharge pump designed specifically for marine applications. This 12-volt pump delivers 4.2 gallons per minute of reliable pumping capacity, making it ideal for removing fish waste, blood, and debris from fishboxes and holding tanks.

Key Features:

• 90° port orientation allows direct replacement of existing macerator pumps in tight, compact installation areas
• Patented non-choke Gulper valve technology eliminates the need for filters and prevents clogged impellers
• No macerator blades means significantly reduced risk of motor burnout from blockages
• Handles solids and debris that would jam traditional macerator pumps
• 12-volt DC operation for standard marine electrical systems
• 4.2 GPM flow rate provides efficient waste removal
• Durable construction built to withstand harsh marine environments

The MK3 Gulper Grouper offers superior reliability compared to traditional macerator pumps by using a proven diaphragm pump design with no impeller to clog. This makes it an excellent choice for fishbox discharge applications where fish scales, guts, and other solid waste can quickly disable standard pumps.