The Glow-worm hose expansion vessel is a small chamber that is used to protect closed water systems from excessive pressure. There is air inside the expansion tank, which serves as a buffer against an increase.
Metal braided hose
Technical specification
System SuitabilityGlow-worm SI 18, Glow-worm SI 30, Glow-worm C 23, Glow-worm CI 24, Glow-worm CI 30, Glow-worm CI PLUS 30 and Glow-worm CI 35Manufacturer Model No20061368Brand NameGlow-worm