Ultra Manholes Chambers

Accessing sewer systems for inspection, cleaning, or maintenance traditionally involved inspection or manhole chambers. However, in the realm of advanced plastic drainage and sewer systems, the need for human entry is significantly diminished, distinguishing it from conventional setups. Modern technologies, such as CCTV inspection cameras and jet cleaners, have become prevalent tools for comprehensive inspection and cleaning, reducing the reliance on manual intervention. Supreme addresses specific maintenance requirements through Ultra 600, leveraging innovative features. Yet, recognizing situations where human entry is unavoidable, Supreme introduces Ultra 1000 and Ultra 1200 readymade manholes. These prefabricated manhole chambers, provided by the Company, comprise a base, a shaft, and a cone with a fitting cover. Alongside the three-piece design, a single-piece design is also available. Complying with EN 13598 standards and approved by MCGM, these robust manhole chambers exemplify Supreme's commitment to quality in design, manufacturing, and testing.

Nu-Drain Ultra readymade manholes are available in single piece and three piece designs, with different flow configurations and invert depths, conforming to EN 13598. Single piece manholes are available in 800, 1000 and 1200 mm sizes while the three piece manholes are available in 1000 and 1200 mm sizes.


Completely made of plastic - ready to use, spacious (1m and 1.2m diameter) with 600/640mm entrance.

90% lighter than concrete manholes - makes them easy to handle and allows simple and quick installation.

Robust design - which can withstand heavy traffic loads up to 40 tons wheel load.

100% watertight structure - free from infiltration and exfiltration.

Smooth internal surface, less slime build-up, minimizing the risk of blockage.

Suitable for installation depths up to 6m

Safe against floatation

Flat bottom for easy and levelled installation.

Provided with an inbuilt ladder to facilitate easy maintenance and cleaning

Adjustable height to suit site requirements during installation.

Simple and reliable pipe connections at different levels are possible using ‘in-situ’ adapters.

Strong and durable - can last for more than 50 years.

Eco-friendly and cost-effective

Product Usage Guide

Installation of Nu-Drain Ultra Manholes

After Sales Services

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