Injector Height Adapter 11mm Top For Nissan Fuel Rails https://www.efihardware.com/products/2721/Injector-Height-Adapter-11mm-Top-For-Nissan-Fuel-Rails
This Injector Height Adapter is specifically designed to adapt 3/4 height injectors into full height injectors with 11mm top seal to suit original Nissan fuel rails.
Nissan fuel rails require a special height adapter with a thinner wall thickness to suit the Nissan specific o-ring for their Top Feed fuel injectors.
The fuel filter is pre-installed inside the lower section of this height adapter.