Personally, I pieced my own together.
Bought the tank off eBay, bought separately off eBay the 2 gauge regulator with solenoid valve, friend gave me a bubble counter and I'll get the tubing and some fittings from my local hardware store. I'm building some DIY diffusers, so that's pretty much all there is to it.
Prices:
$40 - 15 lbs tank
$95 - M3 2 gauge regulator w/ solenoid & needle valve (110V)
$00 - bubble counter (range from $0.99 to $12)
$10 - tubing and fittings
$15 - DIY diffuser
____
$160
I don't know how available tanks and regulators are in England, but you might try eBay. I know I saw a few 220V regulators for about what I paid for mine (actually, now that I think about it they were going for $65).
http://cgi.ebay.com/Dual-Gauged-CO2...ageNameZWD2VQQcmdZViewItem?_trksid=p1638.m122
Bought the tank off eBay, bought separately off eBay the 2 gauge regulator with solenoid valve, friend gave me a bubble counter and I'll get the tubing and some fittings from my local hardware store. I'm building some DIY diffusers, so that's pretty much all there is to it.
Prices:
$40 - 15 lbs tank
$95 - M3 2 gauge regulator w/ solenoid & needle valve (110V)
$00 - bubble counter (range from $0.99 to $12)
$10 - tubing and fittings
$15 - DIY diffuser
____
$160
I don't know how available tanks and regulators are in England, but you might try eBay. I know I saw a few 220V regulators for about what I paid for mine (actually, now that I think about it they were going for $65).
http://cgi.ebay.com/Dual-Gauged-CO2...ageNameZWD2VQQcmdZViewItem?_trksid=p1638.m122