The most complete 4 cylinder Fuel Injector Repair / Service kit for Honda fuel injectors (Accord, Civic, Prelude, etc.) Will also fit Acura injectors. Kit contains 12 O-rings, 4 Upper Grommets, 4 Lower Seal Rings (lower grommets), and 5 Micro basket Filters (4 are sown in picture but we include 1 extra) and 5 Pintle Caps (4 are shown in picture but we include 1 extra). Parts will fit the style of fuel injector as shown in the picture. 12 O-rings are included because Honda injectors used slightly different size/material upper O-rings throughout the years. Therefore, all three common type/size of upper o'rings are included. Clogged micro basket filters are a source of fuel injector malfunction. Lower seal rings oem p/n is 16472-P0H-A01. (Fuel injector is shown for illustrative purposes and is not included in the sale). Free shipping within the USA. Shipping cost to Canada is $9.00. Shipping cost to UK, Australia & all other countries is $11.80. Paypal accepted.