---
product_id: 35175958
title: "Gulper Grouper Pump - Fishbox Discharge Pump"
brand: "whale"
price: "$U18318"
currency: UYU
in_stock: true
reviews_count: 8
category: "Whale"
url: https://www.desertcart.uy/products/35175958-gulper-grouper-pump-fishbox-discharge-pump
store_origin: UY
region: Uruguay
---

# 12V DC, 10A low power draw 4.22 GPM high flow rate 360° multi-directional head rotation Gulper Grouper Pump - Fishbox Discharge Pump

**Brand:** whale
**Price:** $U18318
**Availability:** ✅ In Stock

## Summary

> 🚤 Pump smarter, not harder — dominate your marine waste management game!

## Quick Answers

- **What is this?** Gulper Grouper Pump - Fishbox Discharge Pump by whale
- **How much does it cost?** $U18318 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/35175958-gulper-grouper-pump-fishbox-discharge-pump)

## Best For

- whale enthusiasts

## Why This Product

- Trusted whale brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Corrosion-resistant stainless steel & brass fasteners ensure marine-grade durability.
- • **Clog-Free Efficiency:** Non-choke valves and no impeller jams mean uninterrupted pump performance.
- • **Power-Smart Operation:** Runs on 12V DC with just 10 amps, saving battery life without sacrificing flow.
- • **Compact Retrofit Ready:** 90-degree post orientation fits seamlessly in tight spaces replacing old macerators.
- • **Versatile Multi-Well Use:** Designed for fishbox, livewell, and baitwell with 1" or 1½" hose compatibility.

## Overview

The Whale Gulper Grouper Mk 3 is a rugged, efficient 12V DC fishbox discharge pump delivering 4.22 gallons per minute with clog-free, low-power operation. Its innovative 90-degree post and 360° rotating head enable easy retrofit and versatile installation in multiple wells. Built with corrosion-resistant materials, it outperforms traditional macerator pumps by eliminating filters, impellers, and motor burn-out risks, ensuring reliable, long-lasting marine waste evacuation.

## Description

This Whale Gulper Grouper Mk 3 Fishbox Discharge Pump provides the most versatile and efficient evacuation of waste from spaces such as the fishbox, livewell, and baitwell. Its proven design and technology are superior to macerator pumps, so there’s no filter to clog, no impeller to jam up, and no motor burn-out as it can run dry without damage. Instead, there’s just reliable pump-out. Plus, this Mk 3 Pump features the latest 90-degree post orientation so this pump can be retrofit in line with existing macerator pumps in compact areas. It will replace, outperform, and outlast those macerator pumps. The non-choke valves in the pump head ensure reliable, clog-free pumping, and it is done efficiently with a low power draw. This is a rugged, durable pump, and it can be used in multiple wells, which further enhances its value and productivity. Its multi-directional head with 360-degree head rotation capabilities means it can be used in a variety of wells. This 12-volt DC, 10-amp pump uses 1 inch or 1 ½ inch hose connections and has a 4.22 gallons per minute flow rate. The pump body features aluminum and glass-filled nylon construction, and the fasteners are corrosion-resistant Stainless Steel and brass. Whale designs and manufactures reliable marine water systems which are easy to install and use; providing boating enthusiasts with water, waste management and durable bilge pumps. For over 70 years, Whale has delivered innovative, high quality products that ensure peace of mind and allow you to enjoy your adventures on the water.

Review: Great pump for fish box - This thing sucks great.
Review: Exact replacement. - Works as designed and described.

## Features

- Delivers the most versatile and efficient evacuation of waste from the fishbox, livewell, and baitwell
- Proven design and technology are superior to macerator pumps; no filter to clog, no impeller to jam up, and no motor burn-out
- Features new 90-degree post orientation so this pump can be retrofit in line with existing macerator pumps in compact areas
- Non-choke valves in pump head ensure reliable, clog-free pumping, all done efficiently with low power draw
- Rugged, durable pump can be used in multiple wells
- 12-volt DC, 10-amp pump uses 1 inch or 1 ½ inch hose connections and has a 4.22 gallons per minute flow rate
- Corrosion-resistant Stainless Steel and brass fasteners

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01GKCPV6Y |
| Best Sellers Rank | #402,432 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #484 in Power Water Pumps |
| Brand | Whale |
| Brand Name | Whale |
| Color | Black/Blue |
| Customer Reviews | 4.1 out of 5 stars 75 Reviews |
| EU Spare Part Availability Duration | 5 Years |
| Flow Rate | 4.22 Gallons Per Minute |
| Global Trade Identification Number | 00766478949592 |
| Included Components | End Product & Information |
| Item Type Name | boating-waste-treatment-products |
| Item Weight | 4 Pounds |
| Manufacturer | Whale |
| Maximum Flow Rate | 4.22 Gallons Per Minute |
| Model Number | BP4772 |
| Power Source | Battery Powered |
| Product Style | Mk 3 |
| Style | Mk 3 |
| UPC | 766478949592 |
| Unit Count | 1.0 Count |
| Voltage | 12 Volts |

## Images

![Gulper Grouper Pump - Fishbox Discharge Pump - Image 1](https://m.media-amazon.com/images/I/6140bGDX78L.jpg)
![Gulper Grouper Pump - Fishbox Discharge Pump - Image 2](https://m.media-amazon.com/images/I/61xeYNhU4mL.jpg)
![Gulper Grouper Pump - Fishbox Discharge Pump - Image 3](https://m.media-amazon.com/images/I/61jeHPmixjL.jpg)
![Gulper Grouper Pump - Fishbox Discharge Pump - Image 4](https://m.media-amazon.com/images/I/61LM+Gk5H3L.jpg)
![Gulper Grouper Pump - Fishbox Discharge Pump - Image 5](https://m.media-amazon.com/images/I/51fbWlcP2UL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great pump for fish box
*by A***R on May 20, 2025*

This thing sucks great.

### ⭐⭐⭐⭐⭐ Exact replacement.
*by T***. on November 21, 2021*

Works as designed and described.

### ⭐⭐⭐ Cut lead
*by D***P on June 9, 2024*

I was replacing an existing pump, same model to make replacement simple, as I had 3 years of good luck with previous pump. I had removed old pump last week waiting for new one, opened box to see the ground lead had been cut. I did add a butt splice to it. I fish salt water, so adding anything in line is a no no in my book. Yes I could have sent it back, and waited for a new one. I did not have time for that, had to make it work. The pump itself, previous one anyway, works great and moves a lot of waste from fish boxes. If wire was not cut, would have been 5 stars.

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-21*