Source Flow switch for boiler Ariston ,Beretta ,Fondital , Immergas ( 33900004,1.018914,1.01542) on m.alibaba.com
Potterton Flow Switch Assembly . - Gas Boiler Parts
Series FS-2 | Vane Flow Switch is an economical flow proving solution. Adjustable to fit one to eight inch pipes. Applications include hot water heaters, chillers, machinery, cooling lines, and boiler flow