- Upper mechanism adapted for padlock closure.
- Construction in plastic materials.
- Corrosion proof.
- Tight for water and gas with tight seal.
- Easy installation and removal.
- Completely removable and reusable.
Expansive caps, for sealing piezometers that allow the sampling of VOCs with the PID or sampling pump thanks to its integrated valve and the polyethylene tube. Perfect to leave them installed for monitoring controls and for air analytics.