DP air gometer owner’s manual # 14-3800. Many of the parts listed in this manual are interchangeable with other DP models.14 pages, Includes- assembly instructions, parts list, exploded parts diagram, maintenance info. trouble shooting, training tips, stretching exercises, warm up, exercise program, training chart, using the air gometer, using the computer heart monitor.$7.00 + $1.00 S&H. personal check, money orders, paypal ( credit cards and transfers welcome. Email me at TJTYLE@aol.com I also have copies of the DP Dual track 20 assembly manual, DP Trac 20 assembly manual and the Exercise manual