Inline Filter Mount Brackets Our filter mount brackets are all machined from 6061 Aircraft grade aluminium. They provide a secure mount for your filter and are available in tube mounts and for flat surfaces like a firewall or engine plate. Remote mount brackets are hardcoat anodized to match the remote mount bodies. Features 6061 T6 billet aluminium CNC machined for precision Tube mount or Firewall mount Part Numbers 400 Series Filters - 2 1/2" OD Tube Part # Description 09-0490 Fits 1 1/4" Tube, includes 2 mounts 09-0491 Fits 1 3/8" Tube, includes 2 mounts 09-0492 Fits 1 1/2" Tube, includes 2 mounts 09-0493 Fits 1 3/4" Tube, includes 2 mounts 09-0495 Fits 2" tube, includes 2 mounts 09-0496 Fits 2 1/4" tube, includes 2 mounts 09-0494 Firewall Mount, includes 2 mounts 600 Series Filter - 2" OD Tube Part # Description 09-0690 Fits 1 1/4" Tube, includes 2 mounts 09-0691 Fits 1 3/8" Tube, includes 2 mounts 09-0692 Fits 1 1/2" Tube, includes 2 mounts 09-0693 Fits 1 3/4" Tube, includes 2 mounts 09-0695 Fits 2" tube, includes 2 mounts 09-0694 Firewall Mount, includes 2 mounts