WT Knowles BUFF 9x9 LOUVRE airbrick discontinued

WT Knowles BLACK 9x9 LOUVRE airbrick....discontinued

WT Knowles RED 9x9 SQ HOLED airbrick

WT Knowles BUFF 9x9 SQ HOLED airbrick

WT Knowles BLACK 9x9 SQ HOLED airbrick

WT Knowles RED 9x3 LOUVRE airbrick

WT Knowles BUFF 9x3 LOUVRE airbrick

WT Knowles BLACK 9x3 LOUVRE airbrick

WT Knowles RED 9x6 LOUVRE airbrick

WT Knowles BUFF 9x6 LOUVRE airbrick

WT Knowles BLACK 9x6 LOUVRE airbrick

WT Knowles 9x6 CAVITY LINER

WT Knowles 9x9 CAVITY LINER

WT Knowles RED 9x3 SQ HOLED airbrick

WT Knowles BUFF 9x3 SQ HOLED airbrick

WT Knowles BLACK 9x3 SQ HOLED airbrick

WT Knowles RED 9x6 SQ HOLED airbrick

WT Knowles BUFF 9x6 SQ HOLED airbrick

WT Knowles BLACK 9x6 SQ HOLED airbrick

WT Knowles BLACK clay flue vent/elephants foot

WT Knowles RED clay gas terminal

WT Knowles BUFF clay gas terminal

WT Knowles BLACK clay gas terminal

WT Knowles RED clay mushroom hood

WT Knowles BUFF clay mushroom hood

WT Knowles BLACK clay mushroom hood

WT Knowles 9x3 CAVITY LINER

WT Knowles RED 30"/750mm chimney pot CANNON HEAD

WT Knowles BUFF 30"/750mm chimney pot CANNON HEAD

WT Knowles BLACK 30"/750mm chimney pot CANNON HEAD

WT Knowles RED 36"/900mm chimney pot CANNON HEAD

WT Knowles BUFF 36"/900mm chimney pot CANNON HEAD

WT Knowles BLACK 36"/900mm chimney pot CANNON HEAD

WT Knowles RED clay flue vent/elephants foot

WT Knowles BUFF clay flue vent/elephants foot

WT Knowles BUFF 15"/375mm chimney pot CANNON HEAD

WT Knowles BLACK 15"/375mm chimney pot CANNON HEAD

WT Knowles RED 18"/450mm chimney pot CANNON HEAD

WT Knowles BUFF 18"/450mm chimney pot CANNON HEAD

WT Knowles BLACK 18"/450mm chimney pot CANNON HEAD

WT Knowles RED 24"/600mm chimney pot CANNON HEAD

WT Knowles BUFF 24"/600mm chimney pot CANNON HEAD

WT Knowles BLACK 24"/600mm chimney pot CANNON HEAD

WT Knowles RED 12"/300mm chimney pot CANNON HEAD

WT Knowles BUFF 12"/300mm chimney pot CANNON HEAD

WT Knowles BLACK 12"/300mm chimney pot CANNON HEAD

WT Knowles RED 15"/375mm chimney pot CANNON HEAD

WT Knowles REBATED FLUE LINER 185mm INT DIA

WT Knowles REBATED FLUE LINER BEND 185mm INT DIA 22deg

WT Knowles REBATED FLUE LINER BEND 185mm INT DIA 37deg

WT Knowles REBATED FLUE LINER 225mm INT DIA

WT Knowles REBATED FLUE LINER BEND 225mm INT DIA 22deg

WT Knowles REBATED FLUE LINER BEND 225mm INT DIA 37deg