Festool 577155 Mobile Phone Charging Station PHC 18 Small Type Pneumatic Diaphragm Pump Air Type:145cc Lower Type Pneumatic Diaphragm Pump Air Exhaust Port Size (in) 1 Air Exhaust Port Thread Gender Female Air Exhaust Port Thread Type NPT Air Inlet Size (in) 1 2 Air Inlet Thread Gender Female Air Inlet Thread Type NPT Application Industrial Ball Material PTFE Center Section Material Polypropylene Compatible Material Antifreeze ensuring you get the highest level of reliable cleaning power No more searching for an open socket or worrying about whether your smartphone battery will last until the end of the day the PHC 18 phone charger charges up to three smartphones at the same time and provides sufficient power for all of them