D & K Manufacturing offers a full-line of Check Valves and Couplings for your irrigation system. We also stock service parts to keep your system online.         PRODUCT LINE                        (click to view product details)         •  Sight Check Valves         •  Couplings         •  Replacement Parts         Sight Check valves allow you to have a clear view of the water that is pumping thru the and lets you visually check for any problems.                       Quality and On Time Deliveries are our Guarantee D & K Manufacturing  •  1300 W. Lone Star  •  Silverton, Texas 79257 Ph: (806) 823-2434  • Toll Free (800) 792-1101