Manometer Accessory Kit Includes (2) No A-303 Static Pressure Tips With Magnetic Mounting (2) 3/16 in I.D. Rubber Tubing (1) 9 Volt Battery (1) No A-397 Step Drill for 3/16 in - 1/2 in Holes in 1/16 in Increments (1) No A-532 AV Slide Chart (1) Pitot Tube Polyethylene Case.N17 For Use With 475-1-FM 475-2-FM 475-3-FM 477-1-FM 477-2-FM 477-3-FM Compatible Brand and Series Dwyer 475-FM