Grundfos 519652 - 1" NPT Circulator Pump Bronze Flanges (pair) GF15/26
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Pair of Grundfos 1" NPT Circulator Pump Bronze Flanges (sku# 519652).
Includes (2) flanges, (2) gaskets, (4) nuts & (4) bolts.
we bought a Grunfos pump ups 26-99bfc from you. I came with o-rings and gaskets. Which do I use or do I use both
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If you have flanges with grooves, use the o-rings. Otherwise, use the gaskets.
Answered on 7/30/2012 by PexUniverse Customer Service