This is a set of OEM air conditioner lines for the 1999-2007 Ford F250 and F350 with a 5.4L 2v V8 engine. The brand is Ford and the manufacturer part number is AT96766. These lines are compatible with A/C hoses and fittings and can be used for air conditioning and heating purposes. They are ideal for car and truck parts and accessories and can be purchased on eBay Motors.