
Filters
Graham Stetzer Filter
The Graham Stetzer Filter is a well-tried and tested electrical engineering solution to problems of electromagnetic (EM) pollution. For full details, please see Magda Havas’

The Graham Stetzer Filter is a well-tried and tested electrical engineering solution to problems of electromagnetic (EM) pollution. For full details, please see Magda Havas’

Stetzer Filter The UK version of the renowned Stetzer Filter is robust, fully tested and EC mark-approved. It has been specially engineered for 230V