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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
simply ensure the mounting surface is clean for accurate thermal transfer
When you are troubleshooting erratic pressure spikes or confirming high-limit cutouts
Complete Installation Package: Includes essential 1/4" barb x 1/8" pipe fittings and mounting hardware
Built from high-strength cast metal
The kit includes the vacuum switch
McDonnell & Miller 304300 Snap Switch Els PW 17895 simply ensure the mounting surfaceThe McDonnell & Miller 304300, also identified as the FS1 17 Snap Switch Assembly, is the critical single pole, double throw (SPDT) replacement component designed for Series FS1, FS4 3D, FS5, FS6, and AFE 1 liquid flow switches. This industrial grade switch is engineered specifically for high sensitivity applications in hydronic heating and HVAC systems where detecting low or moderate flow rates is vital for system protection. As an OEM replacement