Profile: PexUniverse.com specializes in offering wholesale plumbing and heating products. Our plumbing & heating products include air elimination, bronze fittings, circulator pumps & flanges, heat exchangers, valves, controls, tankless water heaters, thermostats and installation parts. Taco Hy-Vents® air vents are the industry standard for reliable and long-life service. These air vents are high-capacity, float-style vent and can be used in conjunction with Taco air scoops. With threaded connections ranging from 1/4" to 3/4" and operating pressure ratings of up to 250 psi, this brass-body, nickel-plated vents meet the system requirements of even the largest installations. Vents are easily serviceable, if needed, by simply unscrewing the vent cap. Taco stainless steel circulators are corrosion-resistant, lead-free circulators. They are designed for use in a variety of applications, including open & closed floor radiant heating systems, domestic water recirculation systems and may others. Webstone isolator flange valves are the most convenient, fast and effective way to isolate circulator pumps. Each flange valve is a universal pump flange and a ball valve in 1 piece. These flange valves are manufactured from forged brass for longer life and greater durability. Webstone isolators are available in a large variety of connection types and sizes, with or without drain valves. Flange valves are sold in pairs and additionally include a set of bolts & alternative T-shaped valve handles for installation in areas with limited access. PEX tubing with oxygen barrier is manufactured to ASTM F876/F877 standards. Oxygen barrier PEX is typically used for radiant heating projects, such as underfloor heating, subfloor heating, concrete slabs and snowmelt systems. It can also be used for heating applications and installation of outdoor wood furnaces. The tubing has an oxygen diffusion barrier per DIN 4726 standard.