| 主权项 |
1. An assembly comprising:
a first filter element; and a filter element sub-assembly connected to the first filter element as a pre-assembled unitary assembly, wherein the filter element sub-assembly comprises a second filter element located between a first plate and a second plate, wherein the second plate comprises a liquid outlet into a center open area of the first filter element, where the second filter element comprises a rigid disk shaped member, where the second plate comprises spacer ribs to space the second filter element at a predetermined location on the second plate, wherein the first and second plates are directly fixedly connected to each other to retain the second filter element therebetween as the pre-assembled unitary assembly, and wherein the second plate is located at an end of the first filter element, wherein the first and second plates comprise center holes with portions of the plates sealingly connected to each other at the center holes. |
