Includes (2) N001119 O-Ring Kits. New, Bulk Packed. Genuine OEM replacement part. Consult owners manual for proper part number identification and proper installation. Please refer to list for compatibilityCompatible with : Porter Cable : FN250C Type 1-3 16 Ga. 2-1/2" Finish Nailer Kit Customer favorite. Meets industry standards. High quality guaranteed.