my planted tank

yea i will be ordering a pressurized co2 system asap

what is the best product?

I'd have a look at these and maybe these.

Ideally, you want a 2 stage regulator of good quality plumbed to a top notch needle valve and a good solenoid valve. Then you need CO2-proof tubing and a good diffuser or reactor to dissolve the CO2 into the water.
 
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