Marsh Bellofram's line of Filter-Regulator-Lubricators are designed with economy and convenience in mind. Miniature, Standard, and High Flow sizes to fit the majority of applications and featuring Bellofram Rolling Diaphragms. Units are available in 0-30, 0-60, and 0-120 psi output pressure ranges with a maximum supply pressure of 145 psi. Other options include; 5 or 50 micron filters, and manual, semi-automatic, and automatic drains. Available with 3/8", 1/2", 3/4", and 1" NPT pipe sizes. Modular design allows for easy maintenance and swap-out of the filter, regulator, or lubricator.

Regulators feature Bellofram Rolling Diaphragms, metal body, polycarbonate bonnet, a non-rising adjustment knob, and can be panel, pipe, or bracket mounted.

Filter Regulators have the same features as the Regulators with the addition of polycarbonate bowls, 5 or 50 micron filters, and  with manual, semi-automatic, or automatic drains."

Lubricators feature polycarbonate bowls, and field settable dials providing variable lubrication between 0 and 90 drips per minute.