The Truth Hardware (AmesburyTruth) 15.18 Series Ellipse Dyad Right Hand Casement Window Operator in White is designed for smooth, efficient operation with minimal torque. Constructed from high-pressure die-cast zinc and hardened steel components, it features a 5" link arm and pairs with Truth 14 Series Casement Hinges. This operator is finished with a durable electrostatic coating for enhanced corrosion, chip, and scratch resistance.

Engineered for sashes between 16"–24" wide and up to 52" high, with a maximum sash weight of 52 lbs, this unit offers reliable performance in both residential and commercial applications. Its sealable housing helps eliminate the need for caulking during installation and improves air and water resistance when used with an optional gasket.

Commonly (but not always) identified with the stamp “30905” on the arm.