Gruvlok KNX Hydronic Hook-Up Kits integrate the components needed to connect piping to hydronic heating or chiller system equipment. These pre-engineered, preassembled, pretested kits virtually eliminate engineering/compatibility verification tests and reduce component count per HVAC device by up to 80%. Kits are available in connection sizes from 1/2” to 2” and each is factory-tested, boxed and