Wilger O-ring - #212 Viton® For ORS Body and Fittings | 20460-15
Wilger Flow Indicator columns are made from a specialty UV stabilized compound (TPX™) that maximizes chemical resistance, allowing it to be used for a wide range of chemical applications. As with any plastic, UV exposure degrades the flow indicator columns. To maximize flow indicator column clarity, completely cover the flow indicator columns from UV exposure (sun/etc.) when not in use.