What type of extension cord should I use with my Blower Joe SBJ603E? The SBJ603E blower is best used with a 50-foot, 14-gauge, 3-prong outdoor power cord. We recommend the Power Joe PJEXT50-B extension cord, which is specifically designed for our products and is available on our website. For any length beyond 50 feet, we advise using a 12-gauge power cord. Related articles What should I do if my Blower Joe SBJ603E gets clogged or jammed? How many cubic feet per minute (CFM) does the vacuum setting on my Blower Joe SBJ604E move? How do I switch between blowing and vacuuming/mulching? Why does the motor buzz and fail to run? What extension cord can I use?