Precise Electrical Fit: Features 5

Precision Modulation: The modified equal percentage curve and 100:1 rangeability prevent hunting and provide stable flow

which are lapped to provide a superior seal and consistent performance

Utilizing this OEM top head replacement set eliminates the risks associated with third-party components

Grundfos 99880243 Flange Gasket 30067439-890 Precise Electrical Fit: Features 5The Grundfos 99880243 Flange Gasket is a critical replacement component engineered to maintain a leak proof seal for your hydronic circulation systems. This genuine Grundfos flange gasket 2 pack is specifically designed for the Grundfos UP43 75 pump series, featuring a square cut profile that ensures a high integrity connection between the pump body and the 1 1 2 inch flange. Unlike standard round O rings, these "donut" style HVAC pump gaskets are