This filter is designed to be inserted into a flexible hose such as a rubber or silicone intake pipe. This integral cone channels all the incoming air, towards the inlet manifold, and in doing so, reduces unnecessary turbulence.
Jetstream Universal 100mm 4 inch OD Foam Filter with Silicone Coupler
Jetstream Universal 100mm (3.9inch) OD Foam Filter with Silicone Coupler &Clamps
Jetstream Universal 90mm (3.5inch) OD Foam Filter with Silicone Coupler & Clamps
Jetstream Universal 80mm (3.1inch) OD Foam Filter with Silicone Coupler & Clamps