The Pentair 521319Z Intellichem Controller PCBA used as Genuine Pentair replacement part. Pentair makes the most of life’s essential resources, from great tasting water straight from the kitchen faucet, to industrial water management and everywhere in between daily life. We deliver solutions that help people move, improve and enjoy water, and sustainable applications that help ensure the health of the world. Pentair diversified quickly venturing into a wide variety of industries and eventually focusing its portfolio on water treatment and sustainable applications. This includes acquisitions of great brands, some of which have been serving customers for 150 years.