CO2 regulator connection standard

[ikan]

I bought a CO2 regulator from Petmart a while back but never use it. I would like to know if the connector to the gas bottle is only one size in Singapore. Will this fit if I use Eheim Co2 bottle and generic brands? I measure the connector, the inside diameter is 20 mm. Do they all use the same threads (reverse thread)?

Thanks.

[tawauboy]

co2 uses cga320 fittings, which is standard for co2 related equipment. you should not have a problem if the cylinder is designed and fitted for co2 use. just bring the regulator to any lfs or co2 gas suppliers to try it out.

[ikan]

thanks