McDonnell & Miller 306700 Kit this gasket fits standard 2-bolt

this gasket fits standard 2-bolt flange patterns used in various commercial hydronic circulators matching the ARM1013 specification

System Reliability: Restores a hermetic seal to prevent nuisance tripping of the low water cut-off and maintain accurate boiler water levels

or if you get a 4-flash error code on your control board

as a cross-platform part

it is strictly recommended for Lennox-specified equipment to ensure proper mechanical leverage

McDonnell & Miller 306700 Kit this gasket fits standard 2-boltOptimize your industrial flow control systems with the McDonnell & Miller 306700, a professional grade FS7 28 bronze paddle kit designed for high performance liquid flow switches. This kit is the direct OEM replacement for FS7 4 Series units, including 1 inch and 6 inch bronze paddles to accommodate various pipe diameters and flow velocities. Whether you are servicing FS7 4, FS7 4E, or FS7 4W models, these precision engineered paddles ensure accurate