This is pulsafeeder

Pulsafeeder’s products provide solutions for a virtually limitless number of applications and markets. Their products include electronic diaphragm metering pumps, peristaltic metering pumps, mechanical motor diaphragm pumps, microprocessor based water treatment controllers (boiler, cooling tower and timer) as well as pre-engineered systems and accessories. Their Industry leading brands include Pulsatron, Chem-Tech, Mec-O-Matic, MicroTrac, MicroVision, and many more.