LF Manufacturing has been an industry leader in the production of quality fiberglass products since 1982. LFM carries a complete line of fiberglass manholes, manhole liner inserts, wetwells, tanks and piping systems up to 20-feet in diameter. A wide variety of watertight manholes are available including closed bottom, open bottom, dog-house, tee-base riser and metering manhole configurations. All manholes are rated for H-20 loading. With production facilities and field technicians in Texas, Georgia and Montana, LFM is positioned to serve municipal and industrial water and wastewater needs across North America.