Potter / Amseco Potter Amseco VSR-3 Vane Type Waterflow Alarm Switch with Retard, 3" Pipe Size (Replaces VSR-F) MSRP: Was: Now: $173.86
Potter / Amseco Potter Amseco PAL-328N Electronic Piezo Alert Buzzer with Nut 3 to 28 Volt DC, 20 Milliampere, 93 dB, 1-1/2" Width x 1" Height MSRP: Was: Now: $13.43