OBCON Single 10" Small Sealed Competition Enclosure for Ford F-150 Extended Cab 1997-2003 Passenger Side (.75 cf airspace) Fits Ford F-150 extended cab 1997 - 2003 (passenger side) .75 cf air space for higher power woofers - 4 1/2" mounting depth Plexiglas viewing window V-Block sound deadening interior sealant spray Silver screw down binding post