--- product_id: 395043404 title: "Grundfos 519601 3/4-Inch GF 15/26 Cast Iron Flange Set" brand: "grundfos" price: "¥29486" currency: JPY in_stock: true reviews_count: 5 url: https://www.desertcart.jp/products/395043404-grundfos-519601-3-4-inch-gf-15-26-cast-iron store_origin: JP region: Japan --- # Complete flange set with bolts & gaskets 3/4-inch NPT threaded connection Durable cast iron construction Grundfos 519601 3/4-Inch GF 15/26 Cast Iron Flange Set **Brand:** grundfos **Price:** ¥29486 **Availability:** ✅ In Stock ## Summary > ⚙️ Lock in reliability with Grundfos – the backbone of your heating system! ## Quick Answers - **What is this?** Grundfos 519601 3/4-Inch GF 15/26 Cast Iron Flange Set by grundfos - **How much does it cost?** ¥29486 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/395043404-grundfos-519601-3-4-inch-gf-15-26-cast-iron) ## 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 - • **Trusted Brand Quality:** Grundfos reliability with a 4.6-star rating from 375+ professionals - • **Precision Threaded Fit:** Secure 3/4-inch NPT pipe connection for leak-proof performance - • **Rugged Cast Iron Build:** Engineered for long-lasting durability in heating systems - • **Versatile Compatibility:** Designed for use with Versa Flo UP and UPS pump series - • **All-in-One Installation Kit:** Includes 2 flanges, 2 gaskets, 4 bolts & nuts for hassle-free setup ## Overview The Grundfos 519601 3/4-Inch GF 15/26 Cast Iron Flange Set is a robust, precision-engineered plumbing accessory designed for secure, threaded connections with Versa Flo UP and UPS pumps. Crafted from durable cast iron, this set includes all necessary components—flanges, gaskets, bolts, and nuts—for a seamless installation, ensuring long-term reliability in heating applications. Trusted by professionals and backed by a strong customer rating, it’s the essential upgrade for efficient pump performance. ## Description Pair of Grundfos 3/4" NPT Circulator Pump Flanges.Includes (2) flanges, (2) gaskets, (4) nuts (4) bolts. Specs: Product Specs Material: Cast Iron Application: Heating Type: Pump Flanges Thread Type: Female Connection Size: 3/4" Thread Size: 3/4" Connection Type: Threaded (IPS) Parts Used With: UP 15 Series Pumps (Some) UP 26 Series Pumps (Some) UP 43 Series Pumps (Some) UPS 15 Series Pumps (Some) ## Features - Use with Versa Flo UP and UPS pumps - Pump connection GF 15/26 - 3/4-inch NPT pipe connection - Fitting is threaded for security - Includes 2 flanges, 2 gaskets, 2 bolts with nuts ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0012QGVRC | | Brand | Grundfos | | Colour | black | | Compatible Groove Diameter | 15 Millimeters | | Country Of Origin | USA | | Customer Reviews | 4.6 4.6 out of 5 stars (375) 4.6 out of 5 stars | | Fastener Type | bolts | | Finish Types | No Finish | | Global Trade Identification Number | 00632514009769 | | Item Diameter | 0.75 Inches | | Item Dimensions | 5.1 x 5.1 x 5.1 Centimeters | | Item Shape | Round | | Item Weight | 0.01 Ounces | | Manufacturer | Grundfos | | Material Type | Cast Iron | | Model | 519601 | | Number Of Items | 1 | | Number Of Pieces | 6 | | Outside Diameter | 0.75 Inches | | Part Number | 519601 | | Screw Head Style | Flat | | Set Name | Flanges Set | | Size Name | 347 | | Thread Size | 3/4-18 | | Unit Count | 1.0 Count | | Upc | 783961374501 632514009769 | ## Product Details - **Size:** 347 - **Colour:** black - **Material:** Cast Iron - **Brand:** Grundfos - **Item dimensions L x W x H:** 5.1 x 5.1 x 5.1 Centimeters ## Images ![Grundfos 519601 3/4-Inch GF 15/26 Cast Iron Flange Set - Image 1](https://m.media-amazon.com/images/I/612MCDF08AL.jpg) ## Questions & Answers **Q: What isthe size of the bolts in this set?** A: I believe they were 1/2" x 2" **Q: What are the dimensions of these flanges? Specifically how far apart are the bolt holes?, And how big is diameter on short side?** A: The bolt holes are 3 1/8” Center to Center. The diameter of the two bolt holes are approximately 1/2”. They are about 5/16” from the edge of the flange. I hope this helps you. Mike **Q: My boiler has 1" input/output. Is there a 1" flange set?** A: Yes, please see the following. Grundfos 519602 1-Inch GF 15/26 Cast Iron Flange Set … ASIN: B0012QIZNU **Q: grundfos ups 26-99fc will this set work on this pump?** A: 3/4" GF 15/16 FLANGE SET, BRONZE, THREADED, PAIR, GRUNDFOS, Use with UP15-18SF, UP15-42SF, UP25-64SF, UP26-96BF, UP26-99BF YES ## Customer Reviews ### ⭐⭐⭐⭐⭐ Todo perfecto. *by on Reviewed in Mexico 21 August 2023* Todo bien con el producto, queremos compras mas artículos como este, en total de 102 artículos. Me pueden dar un mejor precio? Gracias ### ⭐⭐⭐⭐⭐ Perfect for their use case! *by on Reviewed in Canada 21 June 2017* They do their job perfectly! The quality of the product is top of the line. I'm using it to pair it with my Grundfos water pump and it fit perfectly and hasn't leaked at all. You can tell this product is going to last. ### ⭐⭐⭐⭐⭐ is what it says-quality is fine *by on Reviewed in the United States 1 June 2024* wrong size 4 me ## Frequently Bought Together - Grundfos 519601 Cast Iron Flange Set for UP Series Circulator Pumps-3/4 NPT, 347, Black - Grundfos 59896341 UPS15-58FC Super Brute Circulator, Red, Small - 3-Speed Grundfos Pump Hot Water Circulator Pump Model UPS15-58FC; 115V --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/395043404-grundfos-519601-3-4-inch-gf-15-26-cast-iron](https://www.desertcart.jp/products/395043404-grundfos-519601-3-4-inch-gf-15-26-cast-iron) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-25*