Delta Style, 3/8" Compression x 3/8" OD x 20", Reinforced Poly Vinyl, Lead Free Faucet Connector, Wetted Surface Of This Product Contacted By Consumable Water Contains Less Than 1/4 Of 1 Percent, 0.25% Of Lead By Weight, Meets AB1953 California & VT S152 Vermont Low Lead Restrictions, Bulk.