Balcrank Filter-Regulator-Lubricator fits 1/4" NPT(F) and includes a filter/regulator with an automatic drain and pressure gauge, as well as a lubricator with a transparent sight dome.
Balcrank's 2-Piece Piggback FRL units combine an air lubricator with a single-piece filter/regulator to prolong the operating life of a pump by maintaining airborne oil mist, removing moisture, and adjusting fluid flow rates and air pressure for the best performance.
Standard Series FRL's are for heavy-duty lube systems and offer excellent water removal efficiency and proportional oil delivery, featuring a 40-micron, depth-style filter with a large filter element, a precision needle valve, two (2) high-flow 1/4" gauge ports, and a heavy-duty, die-cast zinc body with a max primary pressure of 250 PSI, and both pieces feature a metal bowl with sight glass, which can be filled while the air line is under pressure.