Blackdecker corded blower vacs blackdecker gw3050 gb this corded blower vac from blackdecker has a durable fan which increases airflow and mulching capability and also cuts noise levels the leaf collection system connects your blower vac directly to your garden bin or composter avoiding the hassle of having to empty the bagthe adjustable handle and lightweight design make the gw3500 gb easy to use it is fitted with a variable speed dial that allows you to match the power to your task