Abstract: Apparatus for retaining a canister having an adjustable base and at least one swing member attached to the base and preferably two swing members attached to the base opposite each other. The base further has a spring member disposed thereupon and in contact with the swing member to keep the swing member in a first open position. The swing member has a first end that is rotatably attached to the base via a hinge member and a second end that has a semicircular recess formed therein. The base is adjustable to provide an adjustable range of motion of the swing member with respect to the base. In operation, the apparatus moves from a first open position to a second closed position upon application of a force upon the swing members to retain a canister placed between the swing members. Use of the apparatus results in no temporary movement or constricting of a worker's limbs which can cause imbalance or injury nor requires a second person to stabilize the canister.