The Everlock quadrant from Rossi Hardware does away with the need for wingnuts. Wingnuts vibrate easily, causing blades to lose position and airflow to become out of balance. The new Everlock handle features 11 stops for unparalleled positive-locking control, the company says. The Everlock quadrant will be at booth No. 3182 at this month’s AHR Expo.
Rossi Hardware; (818) 252-3811;