Spiral Duct Grille - SDG

The range of double deflection spiral duct grilles that have been designed for fitting directly to circular ducts without the need for a special take-off, with or without damper.
Made from galvanised steel plate.
Replacement for our old RGS grilles, (from a UK manufacturer.)
Comes with a row of adjustable blades with vertical blades in front with optional damper if required.
Suitable for supply or exhaust.
Fixing is by self tapping screws through pre-drilled in grille frame.

Heights of 75mm are suitable for 160mm ducting and larger.
Heights of 125mm are suitable for 250mm ducting and larger.
Heights of 225mm are suitable for 500mm ducting and larger.

2-3 day lead time on this product.