ACH (Automated Clearing House) is a system that provides EFT (Electronic Funds Transfer) between banks. This is generally used as a substitute for paying by check. ACH is only available to US customers in US currency.
Bargain Balloons accepts ACH payments from schools, churches, hospitals, nursing homes, and major corporations. Please open a support ticket to see if your company qualifies, or to request the required banking information to use ACH.
Please see the article Do you accept purchase orders, paying by check or ACH payments for more instructions on how to place an ACH order.