---
product_id: 125395728
title: "AB 55k-2 Swimming Pool Heat Exchanger 55kBtu 316L Stainless Steel Opposite 1 1/2\" & 1\" FPT for Spa/Solar/Swimming Pool Heat Exchanger"
brand: "ab"
price: "A$391"
currency: AUD
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.au/products/125395728-ab-55k-2-swimming-pool-heat-exchanger-55kbtu-316l-stainless
store_origin: AU
region: Australia
---

# 4,000 gal capacity 55 kBtu/hr output 316L stainless steel AB 55k-2 Swimming Pool Heat Exchanger 55kBtu 316L Stainless Steel Opposite 1 1/2" & 1" FPT for Spa/Solar/Swimming Pool Heat Exchanger

**Brand:** ab
**Price:** A$391
**Availability:** ✅ In Stock

## Summary

> 🔥 Heat Up Your Pool Game! 🌊

## Quick Answers

- **What is this?** AB 55k-2 Swimming Pool Heat Exchanger 55kBtu 316L Stainless Steel Opposite 1 1/2" & 1" FPT for Spa/Solar/Swimming Pool Heat Exchanger by ab
- **How much does it cost?** A$391 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/125395728-ab-55k-2-swimming-pool-heat-exchanger-55kbtu-316l-stainless)

## Best For

- ab enthusiasts

## Why This Product

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

## Key Features

- • **Peace of Mind Warranty:** Enjoy a full year of coverage against manufacturer defects.
- • **Versatile Applications:** Perfect for pools, spas, hot tubs, and even outdoor heating solutions.
- • **Unmatched Heating Power:** Effortlessly heats pools up to 4,000 gallons with a robust 55 kBtu/hr output.
- • **User-Friendly Installation:** Features dual FPT sizes (1 1/2" & 1") for seamless integration into your existing setup.
- • **Durable & Corrosion-Resistant:** Crafted from high-grade 316L stainless steel, ensuring longevity against harsh chemicals.

## Overview

The AB 55k-2 Swimming Pool Heat Exchanger is a high-performance heating solution designed for pools, spas, and hot tubs. With a capacity to heat up to 4,000 gallons at an impressive rate of 55 kBtu/hr, this unit is constructed from durable 316L stainless steel, ensuring resistance to corrosion and longevity. It features dual FPT connections for easy installation and is backed by a one-year warranty for added peace of mind.

## Description

AB 55k-2 Swimming Pool Heat Exchanger 55kBtu 316L Stainless Steel Opposite 1 1/2" & 1" FPT for Spa/Solar/Swimming Pool Heat Exchanger

## Features

- Pool heating capacity up to 4,000 gallon 55 kBtu/hr fresh pool based on 60°C (140°F) temperature difference between incoming heating and heated water
- Fully made of high grade anti-corrosion stainless steel 316L for swimming pool, spa, hot tub with chemical treatment.
- 1 year warranty to cover manufacturer defects.
- Bigger size 1 1/2" FPT opposite side for pool water and 1" FPT for hot water
- Various applications: Pool/spa/hot tub heating, outdoor wood furnaces, hydronic heating, forced air heating, floor radiant heating, snow melting, solar water heating

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Size | SP-55K-2 |
| Additional Features | Heavy Duty |
| Theme | Pool Heating |
| Pattern | Solid |
| Shape | Cylindrical |
| Style | Industrial |
| Color | Silver |
| Material Type | Stainless Steel |

## Product Details

- **Size:** SP-55K-2
- **Color:** Silver
- **Material:** Stainless Steel
- **Brand:** AB
- **Style:** Industrial

## Images

![AB 55k-2 Swimming Pool Heat Exchanger 55kBtu 316L Stainless Steel Opposite 1 1/2" & 1" FPT for Spa/Solar/Swimming Pool Heat Exchanger - Image 1](https://m.media-amazon.com/images/I/61tqpoPpSZL.jpg)
![AB 55k-2 Swimming Pool Heat Exchanger 55kBtu 316L Stainless Steel Opposite 1 1/2" & 1" FPT for Spa/Solar/Swimming Pool Heat Exchanger - Image 2](https://m.media-amazon.com/images/I/61lrAsUChnL.jpg)
![AB 55k-2 Swimming Pool Heat Exchanger 55kBtu 316L Stainless Steel Opposite 1 1/2" & 1" FPT for Spa/Solar/Swimming Pool Heat Exchanger - Image 3](https://m.media-amazon.com/images/I/71f3SdwmHqL.jpg)
![AB 55k-2 Swimming Pool Heat Exchanger 55kBtu 316L Stainless Steel Opposite 1 1/2" & 1" FPT for Spa/Solar/Swimming Pool Heat Exchanger - Image 4](https://m.media-amazon.com/images/I/61Mn4qzU+DL.jpg)
![AB 55k-2 Swimming Pool Heat Exchanger 55kBtu 316L Stainless Steel Opposite 1 1/2" & 1" FPT for Spa/Solar/Swimming Pool Heat Exchanger - Image 5](https://m.media-amazon.com/images/I/61IUX-hJnHL.jpg)

## Available Options

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

## Questions & Answers

**Q: Also how long would it take to heat 12000 gal 10 degrees on 140 degree water? Pool is currently 75..**
A: 8 hours

**Q: What do you suggest for pipe fittings?  PVC is only rated to 140 degrees?**
A: They do make CPVC which is rated much higher. If not go stainless

**Q: what is overall  dimensions of 155000 btu unit**
A: Diameter 3",
Length: 17 3/4"

**Q: What is the dimensions of the smallest unit (55 ks or sp55)**
A: Dear Friend 
They have the same heat exchange power, just the ports direction is different, 55ks has same ports and 55k has opposite ports, please choose the model according to your requirement. Thanks a lot!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Heating my pool.  Standard thread fittings
*by S***5 on June 1, 2023*

I'm using this heat exchanger to heat my 6000 gallon pool. I've combined it with a heat pump water heater (which heats our hot water while cooling the house) and had a plumber do a pumped hot water circuit through the heat exchanger that I control with a smart plug. I piped the pumped pool water to the unit before it goes back to the pool. I've been able to raise my pool about 1.3 degrees per hour, but I'm limited by my hot water tank (on heat pump mode) as I only have the heat exchanger running 15 minutes out of 75 minutes so as not to run out of hot water.So I'm sucking heat out of my house and dumping it into my pool and this unit is doing its job perfectly as expected.Note - the silver unit above is a UV sterilizer.. Water goes through that prior to going to the heat exchanger.

### ⭐⭐⭐⭐⭐ Great buy!
*by B***T on July 8, 2024*

We used this for our pool heater and let me tell you, this works amazing! It doesn’t leak, was easy to install and it works efficiently to warm up the pool!!!

### ⭐ Is there a warranty on this product
*by B***R on May 26, 2025*

Purchased 1 year ago has a leak internal. Pool water is leaking out the heat Inlet/outlet.

## Frequently Bought Together

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-24*