Cyclops Type FSC/L Sight Flow Indicators feature a fitting body constructed of one piece with a cross bore for installing stub ends and lap joint flanges which then becomes the "flow line".

The stub end and lap joint design allows for flexibility in rotation to accomodate bolt hole alignment. A full Teflon body lining including a teflon film bonded to the face of each lens allows Cyclops Type FSC/L Sight Flow Indicators the ability to eliminate wetted metal surfaces of the lens ferrule.

Cyclops Type FSC/L Sight Flow Indicators can be supplied with a PTFE Teflon non-directional "Flapper" for horizontal use as well as a "Drip Tube" style for vertical installations.