Description Hydrolevel STAYER with reinforced bulbs works on the principle of communicating vessels and is designed for marking work when laying bricks, screeding floors. Thanks to the long hose, it can be used over long distances. Impact-resistant bulbs with protective valves ensure safety during operation. Designed for marking and checking the horizontal level of surfaces and structures during construction and installation. The sealed construction allows storing and transporting the level without spilling water. A tight fit of the lid to the bulb is achieved by closing with a double click. The hole for hanging on the lid of the bulb allows one person to work with the level. Bulbs with a scale maintain stability even at sub-zero temperatures. The hose is made of oil and gasoline-resistant PVC. Specifications Tube diameter, mm 6 Hose length, m 7