Hose and handle components are completely autoclavable and resistant to most laboratory reagents. Check valve protects against accidental fluid intake into the handle and the Tissue Culture Nosepiece will prevent cross-contamination due to over-pipetting. Overall Measures 114mm length by 89mm width by 64mm height, mounted on rubber base. 7775K80 and K90 Pipet-Aids have trap in the vacuum line between filler handle and pump for use in trapping bio hazardous aerosols. With on-off switch on side of pump housing, includes four spare filters. With 3-wire cord and plug for 50 or 60 Hz. 110V Plain.