What function does the wire-backed media provide?

What is the efficiency rating and at what micron size?
August 17, 2018
Why are Royal Purple Extended Life Oil Filters constructed with a silicone anti-drain back valve?
August 17, 2018

What function does the wire-backed media provide?

The wire backing is to support the filtration media. This further reduces the chance that the filter media could collapse. The use of stainless steel wire provides a strong, durable, AND low restriction way to provide the support.