---
product_id: 24731185
title: "HMC Bi-Directional Rotary Pump - Model# GP-1"
brand: "hmc"
price: "€ 36.19"
currency: EUR
in_stock: false
reviews_count: 1
url: https://www.desertcart.nl/products/24731185-hmc-bi-directional-rotary-pump-model-gp-1
store_origin: NL
region: Netherlands
---

# 5 Gallons/100 Rotations Bi-Directional Flow Aluminum Build HMC Bi-Directional Rotary Pump - Model# GP-1

**Brand:** hmc
**Price:** € 36.19
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Pump Up Your Efficiency!

## Quick Answers

- **What is this?** HMC Bi-Directional Rotary Pump - Model# GP-1 by hmc
- **How much does it cost?** € 36.19 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/24731185-hmc-bi-directional-rotary-pump-model-gp-1)

## Best For

- hmc enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Non-sparking internal components for peace of mind during operation.
- • **Durable Design:** Crafted from high-quality aluminum, ensuring longevity and resistance to corrosion.
- • **Easy Integration:** Standard 3/4" NPT female threads for seamless connection to your existing setup.
- • **Efficient Performance:** Pump approximately 5 gallons with just 100 rotations—maximize your productivity.
- • **Unmatched Versatility:** Effortlessly switch between input and output with bi-directional functionality.

## Overview

The HMC Bi-Directional Rotary Pump Model# GP-1 is a robust and efficient solution for fluid transfer, featuring a durable aluminum construction, non-sparking components, and a high-performance pumping rate of 5 gallons per 100 rotations. Designed for versatility and safety, this pump is perfect for both professional and personal use.

## Description

The GP-1 is the Made in America gas caddy pump which HMC Industries sells with their GC-30 Gas Caddy. It is Aluminum cast and machined with non-conductive rotors and vanes. The GP-1 is bi-directional...it can suck from an outside tank and dispense from an attached tank like the GC-30 Gas Caddy.

## Features

- Bi-Directional Gas Caddy Pump
- All Aluminum Cast and Machined
- Non-sparking internal components
- 3/4" NPT Female threads for both input and output.
- Pumps approximately 5 gallons per 100 rotations.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | HMC Industries, Inc. |
| Part Number | GP-1 |
| Item model number | GP-1 |
| Is Discontinued By Manufacturer | No |
| Material | Aluminum |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![HMC Bi-Directional Rotary Pump - Model# GP-1 - Image 1](https://m.media-amazon.com/images/I/71M9NVDsRJL.jpg)
![HMC Bi-Directional Rotary Pump - Model# GP-1 - Image 2](https://m.media-amazon.com/images/I/818KqZ3Ln3L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great American made rotary hand pump
  

*by W***W on Reviewed in the United States on December 20, 2016*

By far the best rotary hand pump available.  This pump is actually made in the U.S.A. with 100% American parts...including the casting!  Customer service is awesome, pump can be rebuilt years down the road by the factory.Also, no graphite components inside...which keeps your fuel clean!

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**Shop now:** [https://www.desertcart.nl/products/24731185-hmc-bi-directional-rotary-pump-model-gp-1](https://www.desertcart.nl/products/24731185-hmc-bi-directional-rotary-pump-model-gp-1)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-24*