Feature◆ Rollers are made of imported 304 stainless steel,anti-corrosive, anti abrasive ◆ Precision mold forming technology, industrial design, streamline appearance◆ Unique dust-proof rear cover design to clean up easily◆ YZ1515X can only be installed 1.6mm wall tube◆ Easy and fast tube installation◆ Automatic tubing Tighten; ◆Suitable for 7 tubing sizes; ◆The rollers adopt high quality materials and has good wearing property;SpecificationModel :BR-YZ1515X-3Black head Material: PPS, anti-heavy corrosive liquid. White head Material: PESU, anti-general chemicals. Pls note: we will default ship white color if there is no note from your order. Rollers: 304 stainless steelRollers number: 3Accept Tube: ID*WT 13# (0.8*1.6) 14# (1.6*1.6 ) 19#( 2.4*1.6 ) 16#( 3.1*1.6) 25#(4.8*1.6) 17# (6.4*1.6 ) 18#(7.9*1.6)mmFlow rate: 0-2200ml/minRotary speed: 0.1~600rpmShipping weight: 1kgCan be installed with stepper motor, dc ,ac motor.Dimension: Pls check in the main picturePls note: we will default ship white color if there is no note from your order.