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8, 12 and 18 in. ID, Manholes with Observation Windows
One Year Manufacturer Warranty

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OPW 104AOW 8, 12 and 18 in. ID, Manholes with Observation Windows

Cast Iron

Ships From Manufacturer

Select Model & Quantity:

Model # Description Price Qty
104AOW-0800 8 in. ID Cast Iron $152.84
104AOW-1200 12 in. ID Cast Iron, 11-1/4 in. Deep $220.01
104AOW-1219 12 in. ID Cast Iron, 19-1/4 in. Deep $250.70
104AOW-1800 18 in. ID Cast Iron, 11-1/4 in. Deep $418.15
104AOW-1819 18 in. ID Cast Iron, 19-1/4 in. Deep $463.74
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OPW - 104AOW - 8, 12 and 18 in. ID, Manholes with Observation Windows

Designed to be installed at grade level over a slotted PVC monitoring well where limited access and clear identification are essential. Ring gasket prevents water contamination.

Features
  • DO NOT FILL” Graphic Warning Statement - Permanently cast into cover with black equilateral triangle inset into a white background in accordance with API Recommended Practices 1615.
  • Secure Cover - Two recessed, self-aligning stainless steel bolts with O-rings secure cover to the body ring.
  • Prevention Against Surface Water Contamination - A gasket located in the ring prevents contamination from rain water or during washdown.
  • Maximum Load Bearing Capacity - Cast iron covers and body rings are heavily ribbed to ensure maximum load bearing capacity.
  • Trouble-Free Installation - Sturdy steel skirts extend nearly a foot below grade to ensure trouble-free installation even in deep concrete.
  • Optional Skirts - Extend a full 19-1/4" below grade in 12" and 18" diameter models for sandy soil locations.
  • Unpainted Covers and No Bolt-Down Provisions Available - On the 104MW for monitoring well applications where limited access is not required.
  • Full-Size Internal Diameters for Maximum Access and Working Area.
  • Highway 20 Rated (h50) - All OPW spill containers and manholes exceed the requirements of the Highway 20 rating.
  • Individually Boxed for Ease of Handling.
Materials
  • Body Ring: Cast iron
  • Cover: Cast iron
  • Skirt: Steel (104 AOW)
  • Gasket: Neoprene