Refill 4 kg Gas CO² Aquarium

ATTENTION: CUSTOMERS WHO HAVE NOT YET PLACED AN ORDER THROUGH OUR SITE CANNOT ORDER THIS. ONLY WHEN YOU HAVE AN EMPTY CO2-4U/JANOX GAS BOTTLE CAN YOU ORDER A REFILL!!!!!

ONLY 1 REFILL CAN BE ORDERED PER EMPTY BOTTLE.

FOR EXAMPLE: YOU CANNOT ORDER 3 REFILLS IF YOU ONLY HAVE 2 EMPTY BOTTLES. THE EMPTY BOTTLE MUST BE SENT TO US BY YOU FIRST

(AT YOUR OWN EXPENSE). ONCE WE RECEIVE THE EMPTY BOTTLE, THE REFILL WILL BE SENT.