ABW Engineering manufacture two filter devices which help to eliminate unwanted interference from undesirable off-peak (usually hot water) control tones created by
energy authorities.

These devices are made to be mounted in the roof-space where applicable.
 

The 2 products manufactured are:

•  122/70
   
   This 1A - 2A filter is designed to be connected in-line with a single device        
   (eg.  ceiling fan).
  
  
•  156/07
   
   This 10A filter is designed to be connected in-line with the circuit that is being affected.  This eliminates the need for a separate filter for each affected device.