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Cast Iron Manhole Cover, Round 12" x 12", Lay-In, Poly Skirt
The EMCO Wheaton A0717-022 is a 22" (12" lid) round manhole with a Cast iron lid and polyethylene skirt. The lay-in lid drops into the frame without bolts for quick,...
$ 126.18
Cast Iron Manhole Cover, Round 9" x 12", Lay-In, Steel Skirt
The EMCO Wheaton A0717-108 is a 8" round manhole with a Cast iron lid and galvanized steel skirt. The lay-in lid drops into the frame without bolts for quick, unrestricted...
$ 78.86
Monitoring Manhole Cover, Round 6" x 7.5", Ductile Lid
The EMCO Wheaton A0721-106 is a 6" monitoring well manhole with a painted ductile iron bolt-down lid and galvanized steel skirt. At just 6.3 lbs with a 7.5" overall height,...
$ 55.75
Monitoring Manhole Cover, Round 8"x8" Iron Lay-In Lid
The EMCO Wheaton A0721-188L is an 8" monitoring well manhole with a lay-in (drop-in) lid — no bolts required for routine access. The large notch on the lay-in lid eliminates...
$ 66.93
Cast Iron Manhole Cover, Round 12" x 12", Bolt-down Lid
The EMCO Wheaton A0717-022B is a 22" (12" lid) round manhole with a Cast iron lid and polyethylene skirt. The bolt-down lid secures with bolts and a ribbed seal for...
$ 151.40
Cast Iron Manhole Cover, Round 12" x 10", Steel Skirt
The EMCO Wheaton A0717-122 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...
$ 149.85
Monitoring Manhole Cover, Round 8"x12" Ductile Bolt Down
The EMCO Wheaton A0721-008 is an 8" monitoring well manhole with a painted ductile iron bolt-down lid and polyethylene skirt. The poly skirt resists corrosion in aggressive soil conditions and...
$ 83.67
Monitoring Manhole Cover, Round 5"X 8", Bolt down
The EMCO Wheaton A0721-105 is a 5" monitoring well manhole with a painted ductile iron bolt-down lid and galvanized steel skirt. Designed for smaller-diameter wells and piezometers, this compact unit...
$ 50.22
Monitoring Manhole Cover, Round 8" x 8" long metal skirt
The Martin Products MWL8008SM is a 8" monitoring well manhole cover with a long galvanized steel skirt. Provides traffic-rated access protection for groundwater monitoring wells. The extended skirt height accommodates...
$ 122.00
Monitoring Manhole Cover, Round 4" x 8" Bolt-in Lid
The Koby Environmental MH48 is a compact 4" x 8" monitoring manhole cover with a bolt-in lid. Designed for small-diameter monitoring wells where a full-size manhole is unnecessary. The bolt-in...
$ 36.64
Monitoring Manhole Cover, Round 12" x 12" Bolt-down
The EMCO Wheaton A0721-101 is a 12" monitoring well manhole with a white painted ductile iron bolt-down lid and galvanized steel skirt. The steel skirt provides maximum structural rigidity in...
$ 169.54
Cast Iron Manhole Cover, Round 8" x 12", 3/8" Lay-In Lid
The EMCO Wheaton A0717-008 is a 8" round manhole with a Cast iron lid and polyethylene skirt. The lay-in lid drops into the frame without bolts for quick, unrestricted access....
$ 73.59Choosing 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.
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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.
