5 gallon pure water cap,white or blue PE material,100% food grade Sealing good Outside force easy open lid 1.5 gallon pure water cap,100% food grade 2.Blue or white, PE plastic,diameter:56mm,high with ear:55mm 3.shaping full and complete structure, No black spots, smeary,smooth no bubble, burr and defect, no peculiar smell 4.Applicable to within five or three gallons of bottled water (mineral ...