|Item||Nom. Size (Inch)||Size (mm)||Vent Size (mm)||Weight (kg)||Air Flow (mm2)||Reverse Depth (mm)|
|L3||9 x 3||221 x 75||7||0.65||2500||37|
British Products Made in British Foundries
L3 Air Brick
9 x 3 Louvre Air Brick with choice of finishes, bare as standard or painted black (+£10) as standard or painted black (+£10)
Supplied to numerous customers for use in a variety of situations including HVAC terminal vent grilles for the Lawton Company in New Hampshire, USA
Product specifications can be found in the table below.
Louvre grilles have a number of uses . As air outlets they deflect air and gas downwards and can also help to reduce back draught especially when facing towards the prevailing wind.
They do help to reduce the amount of litter and cigarette ends push into vents in public buildings. They are often used for this purpose in rail stations (generally situated near ground level) and help reduce the occurrence of fires caused by careless passengers.
On exposed external walls they are particularly useful in deflecting rainwater ingress.
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