Knob for Lasko Power Plus window box fan

Based on @ jonathanbrodie2's “Lasko box fan knob and handle”. The Lasko “Power Plus” window fan's knob is tightly set into the fan's handle, so Jonathan's design is a little too big to fit. I drew up a new version. It's the right size for this fan, but will work either other models without modification. I liked Jonathan's nice deep finger grips, so I used them here too. Much better than the original knob! :D

For these fans:

Compatibility

- Lasko model B20540 Lasko B20540 20" 3-Speed Power Plus Box Fan - Lasko model B20548 Lasko 20" 3-Speed Pro Power™ Industrial Grade Box Fan - Not tested but should fit the Lasko model 3720: Lasko Weather-Shield® Performance 20" Box Fan