What type of extension cord should I use with my Blower Joe SBJ604E? Your Blower Joe SBJ604E is best used with a 50-foot, 14-gauge, 3-prong outdoor power cable. We highly recommend using our Power Joe PJEXT50-B Extension Cord, which is specifically designed for use with our products and is available for purchase on our website. Related articles What are the best uses for my SBJ604E Blower Joe? How many cubic feet per minute (CFM) does the vacuum setting on my Blower Joe SBJ604E move? How do I prevent the power cord from disconnecting? Does my unit have wheels? What should I do if my Blower Joe SBJ604E gets clogged or jammed?