McDonnell & Miller FS4-3J Flow Switch

1" BSPT, SPDT Switch, General Purpose Liquid Flow Switch for up to 160 PSI Max Pressure with 1", 2", 3", and 6" Stainless Steel Paddles (Part Number 114610)

McDonnell & Miller FS4-3J Flow Switch (Part #114610) – 1" BSPT

The McDonnell & Miller FS4-3J Flow Switch is a high-quality, reliable solution for monitoring liquid flow in HVAC and industrial applications. Featuring a 1" BSPT connection and a durable stainless steel paddle (FS4-15SS replacement available), this switch ensures precise flow detection for optimal system performance. Ideal for controlling pumps, protecting equipment, and preventing system failures.

✔ Brand: McDonnell & Miller
✔ Part Number: 114610 (Alt: FS43J)
✔ Connection Size: 1" BSPT
✔ Includes: 1/2" & 3" Paddle
✔ Reliable Flow Monitoring & System Protection

Upgrade your system with this OEM-quality flow switch for long-lasting performance!

FS4-3J is the direct replacement for FS4-3JE (DOES NOT HAVE THE CE (EUROPEAN) CERTIFICATION.)

This item is not eligible for free shipping.