- Richard Trethewey (Himself)
- Norm Abram (Himself)
- Roger Cook (Himself)
- Kevin O'Connor (Host)
- Tom Silva (Himself)
- Steve Thomas Rooney (Himself)
Ask This Old House — S13E20
Episode: Lightning Protection; Reverse Osmosis Water Filter Install
Air Date: 2015-04-16
Runtime: 30 min
Overview
Lightning protection system; installing a reverse osmosis filter for drinking water.