Pump Discharge Pressure, Nozzle Pressure & the every confusing friction loss calculation. Love it, understand it & flow it!! This high quality regular fit tee has a casually elegant vibe. Additionally, unbelievably soft tri-blend fabric makes it extremely comfortable - once put on, impossible to take off. .: 50% polyester, 25% combed ringspun cotton, 25% rayon .: Light Fabric (4.3 oz/yd (146 g/m .: Regular fit .: Sewn in label This is produced through an print-on-demand company. If you order any additional product, they will ship from two different locations. Pump Operator Tri-Blend
