WTK / LF Refillable CO2 Cannisters

[Tired Accord]

Anyone knows where you can get like 5lb refillable CO2 canisters in TT and where you can get them refilled? This is for making carbonated water for home consumption so I guess it would have to be medical/food grade ... TIA

[pugboy]

i have a small aluminum one, paintball type
i have a regulator head for it but not sure it will work with your fittings

not sure if igl will fill these little ones though