Registers & Grilles

Curved Frame Deflection Grilles – Duct Mounted

Holyoake curved frame deflection grilles have been specifically designed to allow the double- and single-deflection grilles to mount directly onto Holyoake Spiro-Loc rigid round ducting.

Product Accessories
  • Front louver blades are parallel to the long dimension, with the rear blades parallel to the short dimension on the double deflection grille.
  • Blade spacing only available in 20mm.
  • All louver blades are individually adjustable for any degree of deflection.
  • Rear optional Opposed Blade Damper (OBD) for airflow control screwdriver operated from face of register.
Accessory Manuals