RD6GG – Rytons Gravity Grille (150mm Dia. Range)

General Details

RD6GG – Rytons Gravity Grille (150mm Dia. Range)

  • Low profile gravity grille with spigot for 150mm dia. rigid pipe and flexible ducting.
  • Gravity flaps open when appliance is in operation.
  • Connects to Rigid Pipe RD636RND and suits 150mm dia. RytHose range (or use RD6HC).
  • Use RD6CONN and RD6FR to connect to Flat Channel Duct RD61M.
  • Part of Rytons 150mm (220mm x 90mm) RytDuct® Range.
  • Suitable for operating temperatures -15ºC to 60ºC.

Compatible Components:

  • Rytons Rigid Pipe 360mm L RD636RND.
  • Rytons PVC 150mm Diameter RytHose Range.
  • Rytons Fire Resistant RytHose 150mm Dia. FAD610M.
  • Rytons Semi Rigid Aluminium RytHose 152mm Dia. FSRA61.5M.


  • 183mm L x 183mm H x 16.5mm D with 150mm Dia. male spigot.  See image gallery above.

Free Area:

  • 16,000mm² (160cm²) per unit.


  • Brown (RAL8017): RD6GGBR (bagged RD6GGBRBG).
  • White (RAL9010): RD6GGWH (bagged RD6GGWHBG).
  • Terracotta (RAL2001) to order.
  • Buff/Sand (RAL1001) to order.

Static Pressure Drops in Pascals (Pa):

  • 8 l/s: 6.00.
  • 13 l/s: 6.70.
  • 21 l/s: 7.50.
  • 30 l/s: 8.56.
  • 60 l/s: 11.10.
  • 120 l/s: 14.07.


  • High impact polypropylene.
  • Manufactured in compliance with Domestic Plastic Ductwork Specification DW/154.
  • Meets UL94 HB flammability standard.

Handling Information:

  • Weight: 130gms.