Simplified Field Upgrade: Serves as the official replacement for 300SMA11

Circuit Protection: Equipped with short circuit and reverse polarity protection to prevent board damage during installation

Trust this genuine OEM Lennox part to restore factory-spec cooling performance to your commercial or residential cooling systems without the balance issues common in universal aftermarket alternatives

and both are technically identical OEM replacement parts for your furnace

5 VA) to minimize energy consumption and heat generation

Grundfos 99880042 Flange Gasket 30067439-890 Simplified Field Upgrade: Serves asFor service technicians maintaining hydronic systems, the Grundfos 99880042 flange gasket is the critical seal required for high performance UP and LAUP series circulator pumps. This 2 pack gasket set serves as the direct replacement for Grundfos 96409353, ensuring your 2 stage pump installations maintain a leak free interface at the inlet and outlet ports. Designed for GF 50 series flanges and compatible with 2 inch flange sets 96409354 and 96409355,