0 item(s)
View cart
You have no items in your shopping cart.
Monitoring Manhole Cover, Round 6" x 9.5", Ductile Lid
The EMCO Wheaton A0721-106A is the extended-height version of the 6" monitoring well manhole, standing 9.5" tall compared to the standard 7.5". Same ductile iron bolt-down lid and steel skirt...
$ 58.00
Square Manhole Cover, Vault 24" x 24" x 9", Steel Lay-In Lid
The EMCO Wheaton A0717-724 is a 24" square manhole/vault with a 3/8" heavy-duty diamond plate steel lid and 16-gauge steel body. The lay-in design drops into the frame without bolts...
$ 408.31
Monitoring Manhole Cover, Round 12" x 12", Cast Iron Lid
The EMCO Wheaton A0717-122FG is a 22" (12" lid) round manhole with a Cast iron lid and galvanized steel skirt. The lay-in w/finger hole lid drops into the frame without...
$ 151.40
Monitoring Manhole Cover, Round 8" x 8", Black Ductile Lid
The EMCO Wheaton A0721-188 is the short-skirt version of the 8" monitoring well manhole — 9.2" overall height versus the standard 12.7" of the A0721-108. Black ductile iron bolt-down lid...
$ 78.09
Monitoring Manhole Cover, Round 18"x18" Bolt down lid
The EMCO Wheaton A0721-118 is the extended-height 18" monitoring well manhole, standing 18.0" tall compared to the standard 12.3" A0721-018. Black ductile iron bolt-down lid with built-in side handle, galvanized...
$ 363.65
Monitoring Manhole Cover, Round 12" x 12", Bolt Down Lid
The EMCO Wheaton A0717-122B is a 22" (12" lid) round manhole with a Cast iron lid and galvanized steel skirt. The bolt-down lid secures with bolts and a ribbed seal...
$ 193.45
Monitoring Manhole Covers,12"x12" Bolt down Poly skirt
The EMCO Wheaton A0721-001 is a 12" monitoring well manhole with a white painted ductile iron bolt-down lid and polyethylene skirt. The industry-standard choice for 12" monitoring well installations where...
$ 138.33
Monitoring Manhole Cover, Round 8" x 12", Large bolt down lid
The EMCO Wheaton A0721-008CE is the California-compliant version of the 8" monitoring well manhole, featuring larger bolt hardware and a white painted lid for high-visibility marking. Polyethylene skirt with ductile...
$ 72.52
Monitoring Manhole Cover, Round 18" x 12", Steel Lid
The EMCO Wheaton A0717-018B is a 18" round manhole with a Cast iron lid and galvanized steel skirt. The bolt-down lid secures with bolts and a ribbed seal for water-resistant...
$ 357.48
Monitoring Manhole Cover, Round 12" x 18", Cast Iron Lid
The EMCO Wheaton A0717-128A is a 22" (12" lid) round manhole with a Cast iron lid and galvanized steel skirt. The lay-in lid drops into the frame without bolts for...
$ 218.70
Monitoring Manhole Cover, Round 18"x12" Ductile Bolt Down
The EMCO Wheaton A0721-018 is an 18" monitoring well manhole with a black painted ductile iron bolt-down lid and galvanized steel skirt. Features a built-in side handle for one-hand opening...
$ 312.31
Composite Manhole Cover, Round 24" x 12", Cam-Lock D-Seal
The EMCO Wheaton A0716-024CD is a 24" round manhole with a black composite (UV-resistant, fiber-reinforced) lid and galvanized steel skirt. The cam-lock w/d-seal lid uses a cam-lock mechanism with D-seal...
$ 981.61Choosing the Right Manhole Cover
The cover and frame you need depends on three things: what’s going over it (foot traffic, vehicles, heavy equipment), what environment it’s in (roadway, coastal, chemical facility), and what access dimensions the opening requires.
Material
Cast iron — The industry standard for load-bearing applications. Handles vehicle traffic, resists settling, and lasts decades. Choose cast iron for roadway installations, parking areas, and any location with vehicle exposure.
Composite — UV-stable, corrosion-resistant, and significantly lighter than cast iron. The right choice for coastal environments, chemical facilities, and sites where corrosion would destroy a metal cover over time. Won’t rust, won’t degrade in sunlight.
Steel skirt — Heavy-gauge steel frame for maximum structural rigidity. Used where the frame needs to anchor into concrete or asphalt under traffic loads.
Configuration
- Lay-in lid — Drops into the frame flush. Easy to remove for access, standard for most installations.
- Bolt-down lid — Secured with bolts for tamper resistance. Required for secured facilities and high-traffic locations.
- Cam-lock — Quarter-turn locking mechanism on composite covers. Faster than bolts, more secure than lay-in.
Common Sizing
Round covers from 6” to 44” diameter. Square covers from 18” to 36”. Frame depths from 5” to 24”. If you’re replacing an existing cover, measure the opening diameter and frame depth before ordering. Not sure? Call us at (866) 514-3684 — we help contractors and engineers spec covers every day.
Related Categories
FAQ
Why are manhole covers round?
A round cover can’t fall through its own opening — the diameter is constant in every direction. A square cover, turned diagonally, could drop through. Round is inherently safer for any opening that workers or the public walk near.
How do I measure for a replacement manhole cover?
Measure the inside diameter of the existing frame (the opening the lid sits in), and the frame depth. Order a cover that matches both dimensions. If you’re unsure, call us with the measurements and we’ll confirm the right product.
Cast iron or composite — which should I use?
Cast iron for load-bearing and vehicle-traffic locations. Composite for environments where corrosion, UV, or chemical exposure would degrade metal — coastal sites, chemical plants, and industrial facilities.
Do you carry bolt-down manhole covers?
Yes. We carry bolt-down lid configurations in cast iron for applications requiring tamper-resistant, secured access.
