---
product_id: 567207284
title: "Marine AC Pump 500GPH, 115V Marine AC Water Pump, Marine Air Conditioning/Seawater Circulation AC Pump, 500 GPH 115V Submersible"
brand: "lonsge"
price: "$515.39"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/567207284-marine-ac-pump-500gph-115v-marine-ac-water-pump-marine
store_origin: US
region: United States of America
---

# 115V power source 500 GPH flow rate Quiet operation <65dB Marine AC Pump 500GPH, 115V Marine AC Water Pump, Marine Air Conditioning/Seawater Circulation AC Pump, 500 GPH 115V Submersible

**Brand:** lonsge
**Price:** $515.39
**Availability:** ✅ In Stock

## Summary

> 🌊 Stay Cool, Cruise Confident: The Ultimate Marine AC Pump Upgrade

## Quick Answers

- **What is this?** Marine AC Pump 500GPH, 115V Marine AC Water Pump, Marine Air Conditioning/Seawater Circulation AC Pump, 500 GPH 115V Submersible by lonsge
- **How much does it cost?** $515.39 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/567207284-marine-ac-pump-500gph-115v-marine-ac-water-pump-marine)

## Best For

- lonsge enthusiasts

## Why This Product

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

## Key Features

- • **Risk-Free Confidence:** Backed by a full refund or replacement guarantee with responsive 12-hour customer support—buy with zero FOMO.
- • **Powerful 500 GPH Flow:** Keep your marine AC systems running at peak efficiency with a robust 500 gallons per hour circulation rate.
- • **Seamless Compatibility:** Designed to perfectly fit top marine AC brands like Dometic, Webasto, and Cruisair—upgrade without hassle.
- • **Whisper-Quiet Performance:** Brushless motor ensures smooth, noise-free operation below 65 decibels for ultimate onboard comfort.
- • **Durable & Corrosion-Resistant:** Epoxy-encapsulated motor and thermoplastic casing withstand harsh marine environments and extend pump life.

## Overview

The Lonsge Marine AC Pump 500GPH is a high-performance, 115V submersible pump engineered for efficient seawater circulation in marine air conditioning systems up to 24,000 BTU. Featuring a powerful 8.5 GPM flow rate, quiet brushless motor operation under 65 dB, and corrosion-resistant materials, it ensures reliable cooling and durability for long-distance boating. Compatible with major marine AC brands and backed by a no-risk refund or replacement policy, it’s the smart choice for professional boaters seeking comfort and peace of mind.

## Description

Marine AC Pump 500GPH, 115V Marine AC Water Pump, Marine Air Conditioning/Seawater Circulation AC Pump, 500 GPH 115V Submersible

## Features

- 【Best Match】Marine ac pump 500GPH is a perfect fit for all major marine air conditioning systems, including Dometic, Webasto, Cruisair, Marine Air, Koolair, March, and more. The new marine ac pump will be the best replacement for your old marine ac pump, providing fast cooling capabilities to effectively address issues related to heat and discomfort, allowing you to stay cool and comfortable at all times. No longer be affected by the heat and provide better boating experience for you.
- 【Optimal Performance】The flow rate of marine ac water pump is 500 gallons per hour (GPH) or 8.5 GPM. Marine ac pump boasts efficient performance and is compatible with systems up to 24,000 BTU. The robust design of marine ac pump ensures efficient liquid circulation that saving you time and energy. The liquid cooling system guarantees the consistent and reliable operation of marine ac pump, allowing you to embark on long-distance travels without worrying about insufficient power supply.
- 【Smooth & Quiet】Marine air conditioning/seawater circulation ac pump works with 115V 50/60HZ. The inlet size is 3/4" FPT and the outlet size is 1/2" MPT. Reliable brushless motor ensures the smooth operation of marine ac water pump 500GPH; with noise levels below 65 decibels, providing you with a quiet working environment. The marine ac water pump's leak-proof design ensures your safety during use.
- 【Superior Material】Marine air conditioning pump motor and motor cooling system are fully encapsulated with epoxy resin, providing moisture protection and resistance to high temperatures and corrosion. The ability to dry run capability enables marine ac pump to run for extended periods outdoors or when immersed in liquid. The design of the marine ac pump, featuring a corrosion-resistant outer casing and environmentally friendly thermoplastic structure, ensures a low rate of mechanical failures.
- 【100% No-risk Purchase】If you receive any problems with our marine ac pump, you can get a 𝗳𝘂𝗹𝗹 𝗿𝗲𝗳𝘂𝗻𝗱 or 𝗮 𝗻𝗲𝘄 𝗼𝗻𝗲 𝗳𝗼𝗿 𝗳𝗿𝗲𝗲! Please feel free to 𝗰𝗼𝗻𝘁𝗮𝗰𝘁 𝘂𝘀 if you have questions during use. We will give you a satisfactory answer within 12 hours. Customer satisfaction is our tireless pursuit.
- 💝𝐅𝐨𝐫 𝐚𝐧𝐲 𝐫𝐞𝐚𝐬𝐨𝐧 𝐲𝐨𝐮'𝐫𝐞 𝐧𝐨𝐭 𝐜𝐨𝐦𝐩𝐥𝐞𝐭𝐞𝐥𝐲 𝐬𝐚𝐭𝐢𝐬𝐟𝐢𝐞𝐝,𝐏𝐥𝐬 𝐥𝐞𝐭 𝐮𝐬 𝐤𝐧𝐨𝐰 𝐚𝐧𝐝 𝐰𝐞'𝐥𝐥 𝐫𝐞𝐩𝐥𝐚𝐜𝐞 𝐨𝐫 𝐫𝐞𝐟𝐮𝐧𝐝 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐝𝐮𝐜𝐭. 𝐒𝐨 𝐛𝐮𝐲 𝐢𝐭 𝐰𝐢𝐭𝐡 𝐜𝐨𝐧𝐟𝐢𝐝𝐞𝐧𝐜𝐞!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Lonsge |
| Color | ‎black/Orange |
| Material | ‎Polypropylene |
| Style | ‎Submersible |
| Product Dimensions | 7.4"L x 5.6"W x 5.7"H |
| Power Source | AC |
| Maximum Flow Rate | 8.5 Gallons Per Minute |
| Maximum Lifting Height | 19 Feet |
| Voltage | 115 Volts |
| Manufacturer | Lonsge |
| Part Number | Marine AC Pump 115V |
| Item Weight | 7.78 pounds |
| Country of Origin | China |
| Item model number | Marine AC Pump 115V |
| Size | 500GPH |
| Included Components | 1 * Marine AC Pump |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** Lonsge
- **Color:** ‎black/Orange
- **Material:** ‎Polypropylene
- **Style:** ‎Submersible
- **Product Dimensions:** 7.4"L x 5.6"W x 5.7"H
- **Power Source:** AC
- **Maximum Flow Rate:** 8.5 Gallons Per Minute
- **Maximum Lifting Height:** 19 Feet
- **Voltage:** 115 Volts
- **Manufacturer:** Lonsge

## Images

![Marine AC Pump 500GPH, 115V Marine AC Water Pump, Marine Air Conditioning/Seawater Circulation AC Pump, 500 GPH 115V Submersible - Image 1](https://m.media-amazon.com/images/I/61rm66gZJdL.jpg)
![Marine AC Pump 500GPH, 115V Marine AC Water Pump, Marine Air Conditioning/Seawater Circulation AC Pump, 500 GPH 115V Submersible - Image 2](https://m.media-amazon.com/images/I/81UqeYSopXL.jpg)
![Marine AC Pump 500GPH, 115V Marine AC Water Pump, Marine Air Conditioning/Seawater Circulation AC Pump, 500 GPH 115V Submersible - Image 3](https://m.media-amazon.com/images/I/71u9U8NKAQL.jpg)
![Marine AC Pump 500GPH, 115V Marine AC Water Pump, Marine Air Conditioning/Seawater Circulation AC Pump, 500 GPH 115V Submersible - Image 4](https://m.media-amazon.com/images/I/7176iVRVpXL.jpg)
![Marine AC Pump 500GPH, 115V Marine AC Water Pump, Marine Air Conditioning/Seawater Circulation AC Pump, 500 GPH 115V Submersible - Image 5](https://m.media-amazon.com/images/I/71UBYSj32LL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Meets specifications, seems like a good value
*by C***R on April 28, 2025*

The intake of the 250 GPH unit has threads externally and internally; the specs say this but the photos don't show it. 3/4 external, 3/8 internal. My main concern was the power draw since this is for an off-grid application; as shown in the specs this unit draws just under 1 amp which is fantastic. As far as the functionality: Flow and ability to push against a head seems to exactly meet the specifications shown. In comparing this pump to a much more expensive specialty marine A/C pump, I can tell very little difference. As others mentioned, it came with Seaflo branding. For installation the mounting bracket is exactly the same size as other 250 or 500 GPH pumps making for an easy installation. Seems like a good value even if the lifespan is shorter than more expensive pumps.

### ⭐⭐⭐⭐⭐ So far so good
*by M***L on July 13, 2024*

So I ordered this pump as a temporary fix until I got a dometic pump($500) for my 16k btu ac unit. After reading the reviews I thought I would be lucky to get a month out of it... well here I am 2 months later still pumping strong. And to be honest working better than the $500 pump I have on a different AC unit... still going to replace with dometic pump but think this is a great option for a temporary fix... or a backup "oh crap" pump. For the money totally worth it but great pump to have in storage just in case

### ⭐⭐⭐⭐⭐ Very Nice Pump and super shipping.
*by H***I on August 5, 2024*

This pump is good quality. I purchased it for my marine air. So far I am very happy and it works great. Real quiet. Oh Yea... I ordered it on Sunday afternoon and for $9.00 from Amazon, I had it at 7:00 am Monday morning. Great Everything. I was sitting on a boat that I live on, in 98 degree heat with no A/C. Had it up and pumping in no time. Do recommend.

## Frequently Bought Together

- Marine AC Pump 500GPH, 115V Marine AC Water Pump, Marine Air Conditioning/Seawater Circulation AC Pump, 500 GPH 115V Submersible
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-16*