The EMCO Wheaton A0721-128A is a low-profile 12" monitoring well manhole with galvanized steel skirt and 8.0" overall height. White ductile iron bolt-down lid. Choose the -128A over the -128 when steel skirt rigidity is preferred over the poly skirt's corrosion resistance. 23.6 lbs, AASHTO H20.

Key Features

AASHTO H20 wheel loading — safe for roadway, parking lot, and sidewalk installations
Bolt-down lid — stainless steel bolts with alignment tabs for secure, repeatable closure
Galvanized steel skirt — rigid structural support in compacted backfill
Painted ductile iron lid — white finish, painted inside and out

Technical Specifications

Part Number	A0721-128A
Nominal Well Size	12"
Lid Type	Bolt-down
Lid Material	Painted ductile iron
Lid Color	White
Skirt Material	Galvanized steel
Overall Height	8.0"
Clear Hole I.D.	9.4"
Maximum Diameter	15.1"
Weight	23.6 lbs
Load Rating	AASHTO H20
Pallet Quantity	36

Applications

Groundwater monitoring wells, EPA compliance sites, UST (underground storage tank) closure monitoring, environmental remediation, brownfield redevelopment, landfill gas monitoring, and any installation requiring AASHTO H20 traffic-rated well access protection.

About EMCO Wheaton

EMCO Wheaton Retail (a division of ECT Manufacturing) is the industry-standard name in monitoring well access hardware — specified by municipalities, environmental contractors, and federal agencies nationwide.

Questions on sizing, bulk pricing, or custom skirt heights? Call (866) 514-3684 or email us — we ship within the USA and welcome tax-exempt purchasing for qualified accounts.

Monitoring Manhole Cover, Round 12"x8", Bolt-down Lid