• ArrestAir-Pro
• 350mm (14") long, 102mm (4") dia plastic tube
• Internal inverted quad directional grille DiffuseAir. Stamped 'Important Do Not Block'.
• Stainless steel screws, plugs and installation instructions
• 31 cm² Free-area equivalent

• ArrestAir-Pro
• 350mm (14") long, 152mm (6") dia plastic tube
• Internal inverted quad directional grille DiffuseAir. Stamped 'Important Do Not Block'.
• Stainless steel screws, plugs and installation instructions
• 75 cm² Free-area equivalent

• ArrestAir-Pro
• 350mm (14") long, 128mm (5") dia plastic tube
• Internal inverted quad directional grille DiffuseAir. Stamped 'Important Do Not Block'.
• Stainless steel screws, plugs and installation instructions
• 90 cm² Free-area equivalent

• ArrestAir-Pro
• 350mm (14") long, 152mm (6") dia plastic tube
• Internal inverted quad directional grille DiffuseAir. Stamped 'Important Do Not Block'.
• Stainless steel screws, plugs and installation instructions
• 100 cm² Free-area equivalent

• ArrestAir-Pro
• Plastic telescopic wall sleeve for solid/cavity walls 225 to 380mm (9" to 15") thick
• Internal inverted quad directional grille DiffuseAir. Stamped 'Important Do Not Block'.
• Stainless steel screws, plugs and installation instructions
• 100 cm² Free-area equivalent

• ArrestAir-Pro external cowl for superior fan performance protection
• 350mm (14”) long, 102mm (4”) diameter plastic tube - for thicker walls can be extended in 50mm increments as a special
• Use 107mm diameter core bit drill
• 100mm diameter rubber seal gasket
• Internal inverted quad directional grille DiffuseAir. Stamped "Important do not block"
• Stainless steel screws,plugs and installation instructions
• 31 cm² Free-area equivalent

• ArrestAir-Pro external cowl for superior fan performance protection
• 350mm (14”) long, 152mm(6”) diameter plastic tube - for thicker walls can be extended in 50mm increments as a special
• Use 162mm diameter core bit drill
• 150mm diameter rubber seal gasket
• Internal inverted quad directional grille DiffuseAir. Stamped "Important do not block"
• Stainless steel screws, plugs and installation instructions
• 75 cm² Free-area equivalent

All kits conform to the requirements of BS 5400 Part 2:2000 and have been independently tested by Advantica or BRE for equivalent free area.

Applications Include:

Gas / Oil - boiler venting, gas fire venting (including flueless) and solid fuel venting

Oil Burning Appliance - A permanent air entry opening with a total free area of at least 550mm2 /kW of appliance rated output

Solid Fuel Burning Open - A permanent air entry opening or openings with a total free area of at least 5,500mm2 or 50% of the appliance throat opening (whichever is the greater). (Note - if a boiler damper is fitted, the area should be measured with the damper closed).

Other Solid Fuel Appliance - A permanent air entry opening or openings with a total free area equal to at least the combined areas of the primary and secondary air inlets to the appliances.

• ArrestAir-Pro vane technology
• Universal nominal coverage of 225x150mm (9"x6") or 150mm (6") diameter
• Stainless steel screws, plugs and installation instructions
• 135 cm² measured Free-area

• Inverted quad directional ArrestAir-Pro bi-planar vane technology
• Includes safety warning, 'Important Do Not Block'
• Stainless steel screws and plugs.
• Equivalent Free-area stated on each DiffuseAir depending on kit rating.