Profile: Northwest Pipe Fittings, Inc. deals with the wholesale distribution of pipe fittings, pumps and accessories. Our products include boilers, water heaters, pressure reducing valves, relief valves, sumps, pressure gauges & switches. We offer brands such as Anvil, Weldbend, Gruvlok, Kohler, Modine and Merrill. The Weil-McLain® ultra series 3-UE gas-fired boiler has features such as cast aluminum heat exchanger, negative regulated gas valve, and modulates with 5 to 1 turn-down ratio capability. The Weil-McLain® GV gas boiler has control module and ignition control with diagnostic indicator lights.