The EFI Filter Replacement kits are available from The Fuel Parts Store and from Mr. Injector via there online eBay stores and range from about $10.00-$25.00 plus S&H. The kits includes a full set of Viton Fuel Proof O-Rings, the Brand New 10 Micron Fuel Filter Baskets in the number appropriate to your order size of 4, 6 or 8 EFIs and a #10 Metal Screw with a Phillips Head design for screwing into the ends of the old injector baskets to facilitate their extraction. The new baskets can then be easily hammered in lightly with a small Brass Hammer. You can view the "HOW_TO" video and another product link as listed below...and then...You're Done!: http://www.youtube.com/watch?v=V2sD5UsOnJs http://www.rowand.net/shop/Tech/DIYFuelInjectorCleaning.htm