System and method for dispensing aerosol foam

A dispensing system for dispensing a metered amount a pressurized canister, said system comprising:

• a housing configured to be coupled to said pressurized canister, said housing comprising a nozzle;
• an elastic tube comprising a first end configured to be fluidly coupled to a dispense valve of said pressurized canister and a second, generally opposite end configured to be fluidly coupled to said nozzle, wherein at least a first portion of said elastic tube extends through a confined space disposed within said housing;
• an adjustable volume stop movably disposed at least partially within said housing and defining a portion of said confined space, wherein a position of said adjustable volume stop is user selectable to adjust a volume of said confined space;
• and
• a trigger coupled to said housing, wherein:
• movement of said trigger in a first direction relative to said housing causes said first portion of said elastic tube to be sealed from said nozzle and opens said dispense valve such that said first portion of said elastic tube within said confined space expands until a pressure within said first portion of said elastic tube approximately equalizes with a pressure within said pressurized canister;
• and
• movement of said trigger in a second direction relative to said housing causes said dispense valve to close and fluidly couples said first portion of said elastic tube to said nozzle such that said expanded elastic tube contracts and dispenses said metered amount through said nozzle until said pressure in said elastic tube is approximately equal to atmospheric pressure.