Pentair Complete Fitting Package

The Pentair Complete Fitting Package (part number 154687 or 154687Z) is a specialized air bleeder and compression assembly engineered to manage internal aeration within high-rate sand filtration systems, most notably the Pentair Triton II series (models TR40, TR50, TR60, TR100, and TR140) and select System 3 sand filters. Fabricated from a robust combination of corrosion-resistant molded polymers, a heavy-duty machined brass adapter stem, and high-tensile stainless steel hardware, this comprehensive bundle includes the air bleed tee body, specialized sealing O-rings, a structural 3/8-inch nut, and a matching washer. Its primary functional role is to serve as the secure, localized venting junction at the crown of the filter tank, allowing trapped pocket air to be continuously or manually purged from the system so the vessel remains completely flooded with water. By mitigating pocketed air compression, the fitting assembly stabilizes internal hydraulics and ensures the tank safely sustains standard operating parameters up to 50 PSI without risking air-bound pressure spikes or structural stress. Built to withstand consistent chemical exposure from chlorine and acid treatments, rapid pressure surges, and severe outdoor weathering without cracking or stripping its threads, this package maintains a completely watertight seal. Due to its combination of dense brass fittings, stainless steel fasteners, and small plastic components, this complete package carries a compact product and shipping weight of approximately 0.14 to 0.20 pounds (about 2.2 to 3.2 ounces).