L-Bracket Home > Brands > ARO > ARO Filters, Regulators and Lubricators (FRL) > L-Bracket Posted on July 26, 2016March 11, 2021 by tugz Overview & Features Features Used for mounting your regulator or piggyback unit to a wall or flat surface Use a panel nut to keep the unit in place Provides good wall-to-unit clearance Panel nuts are standard on all ARO-Flo regulators and piggybacks 2 year warranty