Orenco® Fiberglass Access Risers are designed to provide access to
septic tank openings, as well as watertight connections between the
tank, riser, and lid. They can be cast into the tops of concrete tanks or
bonded to a fiberglass tank. They can also be used as valve enclosures.
Orenco Fiberglass Access Risers are constructed of filament-wound
fiberglass to be lightweight, corrosion resistant, and extremely strong.
Risers are available in 24- and 30-in. (600- and 750-mm) diameters,
with lengths available in 3-in. (75-mm) increments. They have four bolt
catches to secure access riser lids.