---
product_id: 620058809
title: "Cast Iron Flange Kit with Gasket for Grundfos 519601 UP Series Circulator Pump, 3/4\" NPT (Pack of 2)"
brand: "sesicwe"
price: "311 zł"
currency: PLN
in_stock: false
reviews_count: 6
url: https://www.desertcart.pl/products/620058809-cast-iron-flange-kit-with-gasket-for-grundfos-519601-up
store_origin: PL
region: Poland
---

# Leak-proof gasket seal Complete kit with bolts & nuts Durable cast iron build Cast Iron Flange Kit with Gasket for Grundfos 519601 UP Series Circulator Pump, 3/4" NPT (Pack of 2)

**Brand:** sesicwe
**Price:** 311 zł
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Upgrade your pump game with leak-proof confidence!

## Quick Answers

- **What is this?** Cast Iron Flange Kit with Gasket for Grundfos 519601 UP Series Circulator Pump, 3/4" NPT (Pack of 2) by sesicwe
- **How much does it cost?** 311 zł with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/620058809-cast-iron-flange-kit-with-gasket-for-grundfos-519601-up)

## Best For

- sesicwe enthusiasts

## Why This Product

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

## Key Features

- • **Leak-Resistant Gasket Seal:** Ensures zero sudden water leakage, protecting your system
- • **All-in-One Installation Kit:** Includes flanges, gaskets, bolts, and nuts for hassle-free setup
- • **Compact & Lightweight Design:** Easy to handle and install without bulky tools
- • **Robust Cast Iron Construction:** Built to last through heating & cooling cycles
- • **Engineered for Grundfos UP Series:** Perfect fit for 3/4" NPT circulator pumps

## Overview

This Cast Iron Flange Kit is a precision-engineered, durable solution designed specifically for Grundfos 519601 UP Series circulator pumps. Featuring a sturdy cast iron build and a leak-proof gasket, the kit includes all necessary hardware—flanges, gaskets, bolts, and nuts—for a seamless, reliable installation that safeguards your heating or cooling system from sudden water leaks.

## Description

Cast Iron Flange Kit with Gasket for Grundfos 519601 UP Series Circulator Pump, 3/4 NPT Application Used: Suitable for Grundfos up series circulating pumps, no sudden water leakage Material:This Flange Set is made of durable steel, it's reliable and sturdy for your heating, cooling, or air system, The flange set is a great addition to any system

Review: Wood boiler - Yes exactly what I needs
Review: Poor gasket surface - The gasket surface is very uneven and NOT machined flat. I believe a step was missed in the manufacturing process. You should buy genuine parts, they are flat. The Grundfos flanges I also ordered are perfect.

## Features

- Application Used: Suitable for Grundfos up series circulating pumps, no sudden water leakage
- Material: This Flange Set is made of durable steel, it's reliable and sturdy for your heating, cooling, or air system, The flange set is a great addition to any system
- Size: 3/4 inch Npt Pipe connection for Grundfos up series circulating pumps
- Package included: 2 x Flanges, 2 x Gaskets, 4 x Bolts, 4 x Nuts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | SeSicWe |
| Part Number | 3/4" NPT Cast Iron Flange Set |
| Item Weight | 2.2 pounds |
| Product Dimensions | 6.1 x 4.1 x 1.97 inches |
| Item model number | 3/4" NPT Cast Iron Flange Set |
| Color | Black |
| Style | Pack of 2 |
| Batteries Required? | No |

## Images

![Cast Iron Flange Kit with Gasket for Grundfos 519601 UP Series Circulator Pump, 3/4" NPT (Pack of 2) - Image 1](https://m.media-amazon.com/images/I/71knWkSr4DL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Wood boiler
*by T***R on November 6, 2025*

Yes exactly what I needs

### ⭐⭐ Poor gasket surface
*by J***N on September 20, 2025*

The gasket surface is very uneven and NOT machined flat. I believe a step was missed in the manufacturing process. You should buy genuine parts, they are flat. The Grundfos flanges I also ordered are perfect.

### ⭐⭐⭐⭐⭐ Works well
*by T***R on January 8, 2025*

I have an outdoor wood furnace that heats water and circulates into the house for heat. It uses 3 circulation pumps and of them started leaking at the gasket, this product was perfect to reseal the pump to the pipe, no more leaking.

## Frequently Bought Together

- Cast Iron Flange Kit with Gasket for Grundfos 519601 UP Series Circulator Pump, 3/4" NPT (Pack of 2)
- HYDRO MASTER Universal Pump Flange Gasket (Set of 2)
- Taco 007-F5-7IFC Cast Iron Circulator Pump with Integral Flow Check

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**Shop now:** [https://www.desertcart.pl/products/620058809-cast-iron-flange-kit-with-gasket-for-grundfos-519601-up](https://www.desertcart.pl/products/620058809-cast-iron-flange-kit-with-gasket-for-grundfos-519601-up)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-02-10*