Diffuser 850-20X5 Commercial Standard Features * 4000 -

Standard Features * 4000 - door core grille with single frame * 4100 - door core grille with additional loose frame *

remove the two center cones as a unit and reposition the six screws

Standard Features Double deflection surface mount grille with adjustable airfoil blades Front blades parallel to longest dimension

2" ADC compliant round collar with bead for ease of installation

Diffuser 850-20X5 Commercial Standard Features * 4000 -Standard Features 2 way register with stiffened 1 2" fan shaped louvers for silent operation For ceiling or sidewall applications Lever operated multi shutter damper All component parts, rivets, linkage and handle enclosed in valve to assure trouble free operation Countersunk mounting holes for flush appearance with color matching Phillips Pozidriv screws Rust resistant pre coat with durable powder finish Soft White Options w Lever Operated Opposed