Northport and Smithtown Plumbing Supply are full service, stocking distributors of plumbing supplies. We stock a large inventory of plumbing supplies for local plumbers, commercial and industrial end users and the export market. Additionally, we have two large showrooms with the latest in plumbing fixtures for the homeowner to stop in and pick out the look they love for their new kithchen or bath. Our highly trained staff is ready to assist you in selecting the correct material for your job!