HFS-25 1"/dn25 Flow switch,Liquid Water Flow Paddle Control Switch SPDT Contacts 6-380V : Amazon.co.uk: DIY & Tools
Flow switches, flow monitors | SIKA
1" Flow Monitor/Switch - PVC (100psi max)
Flow Switches, Meters & Indicators – PVL
GE-313AD Teflon Flow Switch with PVC Tee
Fafeicy YF-DN40 Water Flow Hall Sensor, 5-150L/min Water Flow Meter Flowmeter Counter, Water Flow Switch, Magnetic Water Sensor Switch with G1.5in Male Thread Interface : Amazon.co.uk: Business, Industry & Science
GE-340 PVC Paddle Flow Switches | tradekorea
EC500 - Flow Switch 3/4 Inch for PVC Pipe - Stenner – Poolweb
Liquid flow switch - 2600 series - Thomas Products LTD - piston / reed switch / PVC