A replacement EDC Pump Inflator Assembly to repair a lost or worn assembly. Compatible with our 70cc and 100cc EDC Pumps. The inflator head doubles as a CO2 inflator head - simply unthread it from the pump and thread your CO2 right onto it. Fast-On Head (Presta Only) - No threads or locking levers. Service Guide: EDC C02 Inflator Pump head Instructions