Avoid the embarrasment of running out of gas for your barbecue half way through cooking for your guests or having your patio heater run empty during a chilly evening garden party with the help of this handy Gas Level Indicator.
Just place the magnetic indicator on the bottom half of the gas cylinder and once the gas is switched on, the colour of the bar will change to indicate how much gas you have left, so you'll never be caught short again!
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