GAS TRANSITIONS Series 810 Gas Transition with Male NPT Series 812 Gas Transition with Female NPT Series 815 Weld-on Transition for Gas and Water Series 816 Gas Transition for PVC/HDPE Series 817 Flanged Transition for Gas Series 821 Straight Riser with Male NPT Series 831 Straight/Anodeless Riser with Welded End Series 833 Straight/Anodeless Riser with Male NPT Series 834 Straight/Anodeless Riser with Flange End Series 835 Anodeless Riser with Welded End x 90 Degrees Series 836 Anodeless Riser with Male NPT x 90 Degrees Series 837 Anodeless Riser with Flange End x 90 Degrees