【Restore lost system pressure】Easily add water to re-pressurize closed-loop geothermal systems, boilers, and hydronic heating systems after seasonal pressure drops or purging air
【12" Flex Hose】Featuring a 12-inch flexible hose on the loop side that bends and maneuvers into the tightest spaces where rigid tools simply can't go, can easily connect the 1/8" fill needle without breaking your back
【1/8" Fill Needle & Protector】The precision-machined 1/8" needle easily connects to standard geothermal loop ports. A included protective cap keeps the delicate needle safe during storage and transport
【100PSI Gauge】Never guess your system pressure again. The built-in 100PSI gauge lets you monitor pressure in real-time as you fill, ensuring you hit the exact PSI your system needs
【Easy to Use】Simply connect this tool to any garden hose and faucet—utility sink, pressure tank, or hose bib—then add water to geothermal loops, boilers, or hot water tanks. No professional needed, no guesswork