Caleffi 573002A AutoFill™ Automatic Fast-Filling Boiler Fill Valve, 1/2" FNPT X 1/2" FNPT w/ Backflow Preventer Mini Split for example of the thermal

for example of the thermal insulation behaviour of buildings

Hardworking contractors put our product to the test day-in and day-out

life and quality of cut in any job

Powers off automatically after 30 minutes of non-use to conserve battery life

flashlight is IP67 waterproof and dustproof

Caleffi 573002A AutoFill™ Automatic Fast-Filling Boiler Fill Valve, 1/2" FNPT X 1/2" FNPT w/ Backflow Preventer Mini Split for example of the thermalCaleffi 573002A AutoFill Automatic Fast Filling Boiler Fill Valve, 1 2" FNPT X 1 2" FNPT w Backflow Preventer The CALEFFI AutoFill is unlike traditional boiler fill valves, AutoFill automatically and quickly fills the system to the preset pressure and shuts off. With the optional pressure gauge the system pressure can be viewed and adjusted as needed, no more guessing. The automatic filling valve is a device consisting of a pressure reducing valve