Cylinders

you can find the full range of Fabdeck cylinders here

http://fabdec.com/node/128

you can find the full range of Gledhill cylinders here

For copper

http://gledhill.net/page/85/Copper-Cylinders.htm

For Stainless Steel

http://gledhill.net/page/86/Stainless-Steel-Cylinders.htm

You can find the full range of Glow worm cylinders here

http://glow-worm.co.uk/trade/products/boilers/cylinders/index.en_gb.html

you can find the full range of Main cylinders here

http://mainheating.co.uk/375/

You can find the full range of Megaflo cynlinders here

http://heatraesadia.com/megaflo/

you can find the full range of Telford cylinders here 

For copper

http://telford-group.com/browse/copper-vented/361

For Stainless Steel

http://telford-group.com/browse/stainless-steel-unvented/364

You can find the full range of Vaillant cylinders here

http://vaillant.co.uk/homeowners/products/all-products/index.en_gb.html?facets=f%2Fmeta_product_type%2Fcylinder

You can find the full range of Worcester cylinders here

http://www.worcester-bosch.co.uk/homeowner/cylinders