---
product_id: 378642121
title: "519603 1-1/4-Inch GF 15/26 Cast Iron Flange Set"
price: "€ 236.60"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.hr/products/378642121-519603-1-1-4-inch-gf-15-26-cast-iron
store_origin: HR
region: Croatia
---

# 1-1/4-Inch NPT pipe connection Complete flange set with bolts & gaskets Proudly made in the USA 519603 1-1/4-Inch GF 15/26 Cast Iron Flange Set

**Price:** € 236.60
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your plumbing game with the ultimate flange set—because your system deserves the best!

## Quick Answers

- **What is this?** 519603 1-1/4-Inch GF 15/26 Cast Iron Flange Set
- **How much does it cost?** € 236.60 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/378642121-519603-1-1-4-inch-gf-15-26-cast-iron)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Cast Iron Durability:** Built to last with robust cast iron, perfect for demanding heating systems.
- • **Compact & Lightweight:** Weighs just 553g with a compact design for easy handling and installation.
- • **Trusted Brand Standard:** Grundfos quality you can rely on for professional-grade plumbing solutions.
- • **Precision Fit, Zero Hassle:** Engineered for seamless 1-1/4-inch NPT pipe connections, ensuring leak-proof reliability.
- • **All-in-One Installation Kit:** Includes 2 flanges, 2 gaskets, and bolts with nuts for a hassle-free setup.

## Overview

The Grundfos 519603 GF 15/26 Cast Iron Flange Set is a precision-engineered plumbing fitting designed for 1-1/4-inch NPT pipe connections. Made in the USA, this durable cast iron flange set includes all necessary components—flanges, gaskets, bolts, and nuts—for a reliable, professional-grade installation in heating and pump systems.

## Description

Flanged connection for use with cast iron pumps.

Review: Make sure it's all you need!
Review: Good value

## 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 |
| Country of Origin | USA |
| Item Dimensions LxWxH | 20.3 x 10.2 x 15.2 Centimeters |
| Item Weight | 553 g |
| Item model number | 519603 |
| Manufacturer | Grundfos |
| Net Quantity | 1.0 Count |
| Product Dimensions | 20.32 x 10.16 x 15.24 cm; 553.38 g |

## Images

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Make sure it's all you need!
*by K***C on 26 February 2026*



### ⭐⭐⭐⭐⭐ Good value
*by J***A on 20 October 2024*



### ⭐⭐⭐⭐⭐ Worked fine
*by H***Y on 29 May 2024*



## 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.hr/products/378642121-519603-1-1-4-inch-gf-15-26-cast-iron](https://www.desertcart.hr/products/378642121-519603-1-1-4-inch-gf-15-26-cast-iron)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-18*