Zehnder G4 Filter Set For HRV95, CA350 & CA550 REPORT-CAT-053 The effective range depends on

The effective range depends on the temperature difference and speed of movement

It has 10 interior and exterior pockets

and an optional use momentary pull cord to activate the timer

Pull Cord control and back draught shutters

iCON 15 Shower Kit suitable for Toilet

Zehnder G4 Filter Set For HRV95, CA350 & CA550 REPORT-CAT-053 The effective range depends onIdeally, filters should be inspected monthly and given a light vacuum to remove dirt and debris. Filters will eventually become blocked with residual debris and should then be replaced. Generally, blocking will occur every 6 12 months depending on the location (near busy roads or inner city areas tend block more quickly than remote country settings). To see the Zehnder Filter fiting video on youtube please select: Comfo Air 350 Filter video Zehnder P