Demi John Plastic One Gall/4.5 litre

4.5 Litre Demi John in plastic

A demijohn with grommet to take the standard airlock.

These are redesigned and are much improved on the old type. Sturdy heavy plastic with a thick rubber grommet, they are specially made for the job unlike the others on the market which are cheaper plastic water bottles. The heavy grommet really gives an airtight seal and gets over the problems with the thin black ones.

If you wanted a cheaper version you could buy a gallon of water from Tescos and use the grommets you can buy off us....