... ball valve.Normal specification: 1/4,3/8. 1/8=02 1/4=04 3/8=06 1/2 ... tooth,9mm valid length,9.728mm bottom diameter1/4:19 tooth,1mm valid length,13.157mm bottom ... pipe outer diameter contrasting: 1/8=Dia3.175mm ,1/4= Dia 6.35mm , 5/16= Dia 7.938mm ... water purifier, PE purifywater pipe, quick connector, water purifying faucet, ultrafiltration water purifier, pipe line water purifier, water dispenser ...