Topeak TwinHead Schrader/Presta Valve Adaptor w/ 38" Hose: Retrofits Most Pumps Ships within United States Buy Online or Click & Collect Share Loading Facebook Like button... Topeak TwinHead Schrader/Presta Valve Adaptor w/ 38" Hose: Retrofits Most Pumps Ships within United States Buy Online or Click & Collect Share Loading Facebook Like button...