The filter element is 2 inches thick including the foam backing

and rectifier

The harness was constructed with TXL cross linked polyethylene automotive wire for exceptional resistance to abrasion

It snaps directly into place for a simple installation

with a 3/8" diameter hole

530 VX3 X-Ring Chain - 120 Links - Gold Vendor_Drag Specialties The filter element is 2D. I. D brand drive chains are all manufactured in Kaga, Japan, with a goal of perfection and to provide outstanding performance for all riders. D. I. D's VX Series boasts a a 41% longer chain life than the VO Series due to the patented X Ring technology. The VX chain series showcases the industry leading, patented X Ring seal technology, which leads to extended chain life, minimal friction, and overall amazing performance. Note: This O Ring chain