I messed up on this order not knowing that they made two different fuel rubber grommets for the Echo SRM225/PPF225 ---one size is 21mm the other is 18mm ---mine was 18mm --these are 21mm . Not worth sending back so going to keep ---pulled the fuel hoses out of the 21mm grommet and installed them in my 18mm grommet think they will will work fine will know this weekend. This was my mess up and not "setopartss" should have googled this first. Other than that got in a timely manner.