---
product_id: 110702504
title: "2 inch Spa Heater Split Nut Unions (1 Pack)"
brand: "uceder"
price: "€ 20.84"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.de/products/110702504-2-inch-spa-heater-split-nut-unions-1-pack
store_origin: DE
region: Germany
---

# Precision 2.3" inner split nut fit Universal O-ring for top spa brands Durable NPT 1.5" threaded union 2 inch Spa Heater Split Nut Unions (1 Pack)

**Brand:** uceder
**Price:** € 20.84
**Availability:** ✅ In Stock

## Summary

> 🛠️ Upgrade your spa setup with precision and ease—because your relaxation deserves the best!

## Quick Answers

- **What is this?** 2 inch Spa Heater Split Nut Unions (1 Pack) by uceder
- **How much does it cost?** € 20.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/110702504-2-inch-spa-heater-split-nut-unions-1-pack)

## Best For

- uceder enthusiasts

## Why This Product

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

## Key Features

- • **Robust & Reliable:** Crafted with sturdy NPT 1.5-inch threaded unions for secure, leak-proof connections that stand the test of time.
- • **Perfect Fit, Every Time:** Engineered with a 2.3-inch inner diameter split nut to seamlessly fit 2" heater assemblies, ensuring hassle-free installation.
- • **Spa Brand Compatibility:** Includes O-rings compatible with Balboa, Gecko, HydroQuip, Spa Builders, Correctech, and Spanet systems—covering your spa’s essentials.
- • **Installation Made Simple:** Comes with screws and gasket for a complete, ready-to-install package—no extra parts needed.
- • **Avoid Installation Pitfalls:** Designed with precise sizing to prevent overtightening—protect your spa heater and enjoy peace of mind.

## Overview

The UCEDER Spa Hot Tub Heater Split Nut Unions kit includes a 2.3-inch inner diameter split nut and a compatible O-ring designed for 2-inch heater assemblies. It fits major spa brands like Balboa and Gecko, features durable 1.5-inch NPT threaded unions, and comes with screws and gasket for straightforward installation. Engineered to prevent overtightening, this kit ensures a secure, leak-free connection for your spa heater.

## Description

Here is 1 pcs Heater Split Nut Unions with Screw , 1 pcs Heater Gasket / O-ringsActual Split Nut Measurement : The inner size is 2.3 inch, the outer size is 2.9 inch.Actual Oring Measurement: The inner size is 2.08 inch, the outer size is 2.87 inch.the O-ring fits for Balboa,Gecko,HydroQuip,Spa Builders,Correctech,Spanet,not fits LX Heater,the split nut fits 2" Heater Assemblies Made by Balboa,Gecko,HydroQuip,Spa Builders,Correctech and LX

## Features

- Package Include 1 pcs Heater Split Nut Unions with Screw , 1 pcs Heater Gasket / O-rings
- Split Nut Measurement：The inner size is 2.3 inch, the outer size is 2.9 inch,fits 2" Heater Assemblies
- Actual Oring Measurement：The inner size is 2.08 inch, the outer size is 2.87 inch，O-ring fits for Balboa,Gecko,HydroQuip,Spa Builders,Correctech,Spanet,not fits LX Heater
- Attention！！！the O-ring fits for Balboa,Gecko,HydroQuip,Spa Builders,Correctech,Spanet,not fits LX Heater
- Pls not choose the same size as your pipe,because the same size will be too tighten to be installed.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | UCEDER |
| Color | White |
| Connector Type | Union |
| Thread Size | 1.5 inches |
| Thread Type | NPT |
| Item Weight | 0.11 Kilograms |
| Number of Pieces | 2 |
| Global Trade Identification Number | 06950787225650 |
| Manufacturer | pool spa part store |
| Part Number | 541 |
| Item Weight | 3.7 ounces |
| Package Dimensions | 3.15 x 1.69 x 1.65 inches |
| Country of Origin | China |
| Item model number | 541 |
| Is Discontinued By Manufacturer | No |
| Pattern | Solid |
| Shape | Round |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** UCEDER
- **Color:** White
- **Connector Type:** Union
- **Thread Size:** 1.5 inches
- **Thread Type:** NPT
- **Item Weight:** 0.11 Kilograms
- **Number of Pieces:** 2
- **Global Trade Identification Number:** 06950787225650
- **Manufacturer:** pool spa part store

## Images

![2 inch Spa Heater Split Nut Unions (1 Pack) - Image 1](https://m.media-amazon.com/images/I/61ylD15h7DL.jpg)
![2 inch Spa Heater Split Nut Unions (1 Pack) - Image 2](https://m.media-amazon.com/images/I/61lBVlPAnWL.jpg)
![2 inch Spa Heater Split Nut Unions (1 Pack) - Image 3](https://m.media-amazon.com/images/I/41hIhFeR-3L.jpg)
![2 inch Spa Heater Split Nut Unions (1 Pack) - Image 4](https://m.media-amazon.com/images/I/51fH3iEVI3L.jpg)
![2 inch Spa Heater Split Nut Unions (1 Pack) - Image 5](https://m.media-amazon.com/images/I/61MfUt6U8FL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Proper size
*by R***R on October 24, 2024*

Perfect fit and perfect seal.

### ⭐⭐⭐⭐⭐ PVC screw on
*by L***N on February 11, 2025*

Worked perfect

### ⭐⭐⭐⭐⭐ Best I have found!
*by D***A on January 26, 2025*

I can't state enough how much better this is than the other black ones I have tried. The retaining side of this piece is over twice as thick making for a EZ seal.

## Frequently Bought Together

- UCEDER 1pcs Spa Hot Tub Heater Split Nut Unions with Screw and 1 pcs Heater Gasket/O-rings(Actual Size 3 Inch,Suitable for 2 Inch Heater Assemblies)
- UCEDER 2 Pack Spa Hot Tub Heater Split Nut Unions with Screw, 2 pcs Heater Gasket/O-Rings,(Actual Size 3 Inch,Suitable for 2 Inch Heater Assemblies)

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**Shop now:** [https://www.desertcart.de/products/110702504-2-inch-spa-heater-split-nut-unions-1-pack](https://www.desertcart.de/products/110702504-2-inch-spa-heater-split-nut-unions-1-pack)

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-03-02*