high quality machine cast iron lid and base, with a strong plastic skirt. It is ideal for 100mm monitoring wells and has been tested to exceed load bearing requirements for traffic suitability for Australian Standard AS3996 Class E, which is typically for heavy duty applications.

The large 250mm OD, 200mm ID (164mm between bolt holes) makes the FWH 200 Nondo ideal for remediation wells, or in situations where a ‘GasClam’ sensor is to be installed.