B3151-01B11GW is an add-on valve with ¼” OD tube outlet for use with multiple feed lubricators:
This Add-On Sight Feed Valve features vented sight chambers to ensure proper flow and prevent airlock. The unit withstands up to 125 PSI inlet to orifice pressure. It has an aluminum alloy valve body, glass sight, Buna-N seals, 1/16" diameter port, and 1/4” OD tube outlet. Valves can be joined together with the included Threadapter® and the use of an 9/16” wrench, 1/2” wrench, and 3/16” hex key.