3/4 brass check valve 1.material:brass. 2.size:1/2"3/4"1. 3.packing:plastic bags. 4.guarantee time:19 years 3/4 brass check valve 1)material:brass.2)size:1/2"3/4"1".3)packing:plastic bags /carton,53X17X19 , 50pcs/carton . Out carton size:53X17X19,one pcs/ one plastic bag,one pcs/one inner box,100pcs/carton.4)guarantee time:19 years5)certificate:ISO9001,CE,CPU.6)surface:polishing.Chrome.7)the ...