What is the distance between the bolt holes ? Thanks

Center to center is 3-1/4" for the Grundfos flanges.

What is the total lenght of the flange ? Thanks

Total length of the Grundfos flange is 4-1/4". The holes center to center is 3-1/4".

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⚙️ Upgrade your pump game with precision and power!

COMPACT LIGHTWEIGHT - At just 1.22 lbs and 8x4x6 inches, it’s easy to handle without compromising strength.
TRUSTED BRAND ASSURANCE - From Grundfos, a leader in pump technology, ensuring compatibility and quality you can count on.
PRECISION ENGINEERED FIT - Seamlessly integrates with Grundfos UP Series pumps for leak-proof performance.
ALL IN ONE INSTALLATION KIT - Includes 2 flanges, 2 gaskets, and 4 bolts & nuts—everything you need in one package.
RUGGED CAST IRON DURABILITY - Built to withstand high pressure and ensure long-lasting reliability in demanding plumbing setups.

The Grundfos 519603 Cast Iron Flange Set is a robust, 1-1/4" NPT fitting kit designed specifically for UP Series circulator pumps. Featuring durable cast iron construction and a complete installation package, it guarantees a secure, leak-resistant connection that meets manufacturer standards for professional-grade plumbing solutions.

RM353

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TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Manufacturer	Grundfos
Part Number	519603
Item Weight	1.22 pounds
Product Dimensions	8 x 4 x 6 inches
Item model number	519603
Is Discontinued By Manufacturer	No
Size	379
Color	Black
Material	Cast Iron
Item Package Quantity	1
Included Components	Grundfos 519603 Cast Iron Flange Set for UP Series Circulator Pumps - 1-1/4" NPT
Batteries Included?	No
Batteries Required?	No

Grundfos519603 Cast Iron Flange Set for UP Series Circulator Pumps - 1-1/4" NPT

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