Eight (8) fuel injector micro basket filters for Yamaha outboard motors HPDI LZ, Z 150hp 175hp and 200hp. Should also fit VZ models. Crush ring diameter is approximately 6.08mm, overall length is 14.00mm. These are correct size as oem - not the shorter universal type. These are sometimes referred to as Mystery Filters because they do not show up on any Yamaha parts diagram. Replacement of these filters is often done as part of a periodic maintenance program. These are high quality filters. Free shipping within the USA. Shipping cost to Canada is $8.00. Shipping cost to UK, Australia & all other countries is $11.80.