FACTORY SUPPLY coolant hose size :1/4,3/8,1/2 round cock,flat cock... with switch or not ISO9001:2008 Hebei Shengtuo Machine Accessories Producing Co.,Ltd Supply quality coolant hoseNormal size :1/4 3/8 1/2Normal Length : 280 300 410 Different type nuzzle : round ,right angle ,flat angle adjustable hose Y Tee Connector