Yes I am afraid you do. A £50.00 deposit has to be paid on all cylinders no matter which size you require, unlike other companies who charge you a bigger deposit the bigger the cylinder you require! The deposit is fully refundable at any time, the FULL amount! You can keep the cylinder as long as you wish and on production of your original deposit receipt we will refund you ALL of your deposit paid. Unlike other companies who only partially refund your deposit or charge you an admin fee for deposit refund. With Chorley Bottle Gas Ltd you get all your deposit refunded no matter how long you have had our cylinder.