Specifications: Max Core Bit Size: 3". This is a brand NEW water ring used to vacuum wet slurry while concrete coring. Max Core Bit Size: 3" 3/4" diameter male barbed hose fitting. Customers have also modified the opening on this for up to 5" diameter coring (we only sell it as the 3" hole specified) Let us know if you have any questions before or after purchase. We'll usually answer emails questions within the hour. Thanks for shopping! FOR SHIPPING OUTSIDE OF CONTINENTAL UNITED STATES PLEASE CONTACT FOR SHIPPING QUOTATION, IF NOT OTHERWISE SPECIFIED IN ITEM DESCRIPTION.
