FM400 | Flow sensor 4" ANSI Class 125 ?p 1.75 psi FS 380 GPM $6,288.70 SKU: FM400 MANUFACTURER: Belimo Parent Item Parent Item - Additional Cost Has Item Option Quantity -+ Add this item to get free shipping! Add to Cart Add to Cart Current Stock: Please contact sales Details FM400 | Flow sensor 4" ANSI Class 125 ?p 1.75 psi FS 380 GPM Documentation Data Sheet DetailsDocumentationBackFM400 | Flow sensor 4" ANSI Class 125 ?p 1.75 psi FS 380 GPMBack Data Sheet