---
product_id: 378642121
title: "Grundfos 519603 1-1/4-Inch GF 15/26 Cast Iron Flange Set"
brand: "grundfos"
price: "R3996"
currency: ZAR
in_stock: true
category: "Grundfos"
url: https://www.desertcart.co.za/products/378642121-grundfos-519603-1-1-4-inch-gf-15-26-cast
store_origin: ZA
region: South Africa
---

# 1-1/4-Inch NPT pipe connection Durable cast iron construction Complete flange set with bolts & gaskets Grundfos 519603 1-1/4-Inch GF 15/26 Cast Iron Flange Set

**Brand:** grundfos
**Price:** R3996
**Availability:** ✅ In Stock

## Summary

> 🔧 Connect with Confidence: The Cast Iron Flange Set That Means Business

## Quick Answers

- **What is this?** Grundfos 519603 1-1/4-Inch GF 15/26 Cast Iron Flange Set by grundfos
- **How much does it cost?** R3996 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/378642121-grundfos-519603-1-1-4-inch-gf-15-26-cast)

## Best For

- grundfos enthusiasts

## Why This Product

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

## Key Features

- • **All-in-One Flange Kit:** Includes 2 flanges, 2 gaskets, and 2 bolts with nuts for hassle-free installation.
- • **Compact & Lightweight:** Weighs just 1.22 lbs with a compact 20.3 x 10.2 x 15.2 cm footprint for easy handling.
- • **Precision Fit Connection:** Engineered 1-1/4-Inch NPT pipe connection ensures seamless pump integration.
- • **Trusted Brand Reliability:** Grundfos quality with a 4.8-star rating from industry professionals.
- • **Rugged Cast Iron Durability:** Built to last with premium cast iron, designed for heavy-duty pump applications.

## Overview

The Grundfos 519603 1-1/4-Inch GF 15/26 Cast Iron Flange Set is a robust plumbing fitting designed for cast iron pumps. Featuring a precise 1-1/4-Inch NPT pipe connection, it comes complete with flanges, gaskets, bolts, and nuts for a streamlined installation. Crafted from durable cast iron, this flange set offers long-lasting performance and is trusted by professionals, boasting a 4.8-star rating. Compact and lightweight, it’s the essential upgrade for reliable pump connections.

## Description

Flanged connection for use with cast iron pumps.

## Features

- Pump connection: GF 15/26
- 1-1/4-Inch NPT pipe connection
- 2 flanges
- 2 gaskets
- 2 bolts with nuts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0039PO22K |
| Brand Name | Grundfos |
| Customer Reviews | 4.3 4.3 out of 5 stars (23) |
| Global Trade Identification Number | 00632514024649 |
| Item Dimensions | 20.3 x 10.2 x 15.2 Centimeters |
| Item Weight | 1.22 Pounds |
| Manufacturer | Grundfos |
| Manufacturer Part Number | 519603 |
| Material Type | Cast Iron |
| Model Number | 519603 |
| Number of Pieces | 8 |
| Set Name | Grundfos 519603 1-1/4-Inch GF 15/26 Cast Iron Flange Set |
| Size | 379 |
| Thread Size | 1-1/4 inches |
| Thread Type | NPT |
| UPC | 632514024649 735090478179 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Grundfos
- **Global Trade Identification Number:** 00632514024649
- **Item Weight:** 1.22 Pounds
- **Item dimensions L x W x H:** 20.3 x 10.2 x 15.2 Centimeters
- **Manufacturer:** Grundfos
- **Material:** Cast Iron
- **Number of Pieces:** 8
- **Size:** 379
- **Thread Size:** 1-1/4 inches
- **Thread Type:** NPT

## Images

![Grundfos 519603 1-1/4-Inch GF 15/26 Cast Iron Flange Set - Image 1](https://m.media-amazon.com/images/I/61luHiue4dL.jpg)
![Grundfos 519603 1-1/4-Inch GF 15/26 Cast Iron Flange Set - Image 2](https://m.media-amazon.com/images/I/41JX7PXwKwL.jpg)

## Questions & Answers

**Q: What is the distance between the bolt holes ? Thanks**
A: Center to center is 3-1/4" for the Grundfos flanges.

**Q: What is the total lenght of the flange ? Thanks**
A: Total length of the Grundfos flange is 4-1/4". The holes center to center is 3-1/4".

## Frequently Bought Together

- Grundfos 519603 Cast Iron Flange Set for UP Series Circulator Pumps-1-1/4 NPT, Black
- Grundfos 59896341 UPS15-58FC Super Brute Circulator, Red, Small
- HYDRO MASTER Universal Pump Flange Gasket (Set of 2)

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**Shop now:** [https://www.desertcart.co.za/products/378642121-grundfos-519603-1-1-4-inch-gf-15-26-cast](https://www.desertcart.co.za/products/378642121-grundfos-519603-1-1-4-inch-gf-15-26-cast)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-11-12*