Armoured metal tube rotameters are recommended for liquids or gases where process or operating conditions make all-metal construction desirable. This type of rotameter is also usefui for metering opaque fluids. The meter is manufactured in various materials of construction and with 150,300 or 600 # flange connections. In our model RMC - 100 an extension with magnetic lenier indicating scale is bolted to the meter to indicate the float position. In another modification model RMC - 200 a dial type of indicator is provided.