Various
The ultimate manhole covers site

There are 8 covers that are used by Nippon Water Service:      Show on map Thumbnails mode

1 Tokyo - modular water cover
1-chōme-6-16 Akasaka, Minato City, Tōkyō-to 107-0052, Japan
2 Tokyo - a small water cover - Gate valve
Japan, 〒107-0062 東京都港区南青山1丁目25−8 Nogizaka Station
3 Tsuruoka - Water heater
3-chōme-13-35 Yura, Tsuruoka, Yamagata 999-7464, Japan
4 Nikko - Gate valve
859-14 Kinugawaonsentaki, Nikko, Tochigi 321-2526, Japan
5 Nikko- air valve
859-14 Kinugawaonsentaki, Nikko, Tochigi 321-2526, Japan
6 Nara - Water meter stop valve
490-1 Sanjōchō, Nara, 630-8244, Japan
7 Nara - Water meter stop valve (2)
490-1 Sanjōchō, Nara, 630-8244, Japan
8 Naoshima - Air valve
786 Honmura, Naoshima, Kagawa-gun, Kagawa 761-3110, Japan

The ultimate manhole covers site

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