All steel manometer 10 cm YN100BF All steel manometer 10 cm YN100BF Black manometer 10 cm Y100 Black manometer 10 cm Y100 Black manometer 6 cm Y63 Black manometer 6 cm Y63 Manometer, all steel, 6 cm YN63BF Manometer, all steel, 6 cm YN63BF Millibar black manometer YE100 Millibar black manometer YE100 Steel manometer, brass connection, 6 cm YN63 Steel manometer, brass connection, 6 cm YN63 Steel manometer, oiled brass connection, 10 cm YN100 Steel manometer, oiled brass connection, 10 cm YN100