Free Ground Shipping (exclude PUR,HI,AK). For AT-2 plus, AT-102, AT-102 plus, AT-10 plus, DS20, MS-2010, MS-2015, with 10 pcs. Disposable plastic mouth pieces, 2 nose clips, holder. Slow Spirometry (SVC, ERV, IC, VT, IRV, MV etc.), Forced Spirometry FVC, FEV1, PEF, FEV1/FVC, MVV etc.), Flow Volume and Volume-time loop pre/post interpretation.This equipment require the Schiller Calibration Pump