Cast iron and bronze manufacture. 4" fpt hatch cover. Cast iron base designed as self acting anchor lug. Bronze cap and foot pedal. One piece pedal is single lever action reducing wear from use. Flat face seat between cap and base for positive close and fly tight seal. Lockable. Self closing. Design allows for flush or raised installation.
Designed according to regulations specified by county, state and federal agencies for environmental and public health protection.
