The Product Suitable For:(Tips: press “Ctrl + F” to help you quick locate the model you are looking for)For the following models EchoPAS-225 (S59511001001-S59511003000) Gas Power Source AttachementPAS-225 (S59511003001-S59511999999) Gas Power Source AttachementPAS-225 (S59612001001-S59612022000) Gas Power Source AttachementPAS-225 (S59612022001-S59612999999) Gas Power Source AttachementPAS-225 (S86813001001-S86813999999) Gas Power Source AttachementGT-2200 Curved Shaft Grass TrimmerSRM-225 (S03912001001 – S03912999999) Straight Shaft Trimmer / BrushcutterSRM-280 (S74012001001 – S74012999999) Straight Shaft Trimmer / Brushcutter99944200907 Speed-feed 400 HeadSRM-2620 (T87114001001-T87114999999) TrimmerSRM-2620 (T89415001001-T89415999999) TrimmerSRM-2620T (T87214001001-T87214999999) TrimmerSRM-2620T (T89515001001-T89515999999) TrimmerSRM-2620U (T87314001001-T87314999999) TrimmerSRM-2620U (T89615001001-T89615999999) TrimmerPackage Inlcude:3X String Trimmer HeadW/o Product Instruction(As Picture Show, Contact If Receive With Missing Parts)Description:Highest after-sales guaranteeLow cost,Highest cost performanceBrand New High Quality Durable and easy to installNote If you are uncertain about the item,Please feel free to contact for confirm.Sorry for any inconvenience caused.Full refund guarantee if does not fit.