Pentair 1.5" Brass Air Bleeder Adapter

The Pentair 1.5" Brass Air Bleeder Adapter (part number 154670 or 154670Z) is a specialized, heavy-duty metallic port component engineered exclusively for the top access domes of commercial and residential high-rate sand filtration systems, most notably legacy iterations of the Pentair Triton II and Triton C series. Machined from premium, corrosion-resistant marine brass alloy, this adapter features a 1.5-inch threaded outer diameter connection profile. Its primary structural role is to thread directly into the peak of the filter tank lid or dome closure, serving as a high-strength, unyielding mechanical anchor port that accepts the manual air relief valve, pressure gauge, and automated internal air bleed assemblies. When tightened down with its corresponding sealing gasket, it establishes an absolute airtight and watertight high-pressure boundary, ensuring the filter system safely contains high fluid velocities and continuous internal hydraulic operating pressures up to 50 PSI without weeping, thread-stripping, or risking localized pressure-blowouts under pump vibration surges. Engineered to survive harsh equipment pad environments, it completely resists degradation from intense outdoor UV exposure, extreme seasonal temperature cycling, and continuous exposure to concentrated pool sanitizers like chlorine, bromine, and winterizing acid washes. Due to its dense, solid brass metallic construction designed for industrial longevity, this individual adapter fitting carries a net product and shipping weight of approximately 0.30 to 0.45 pounds (about 4.8 to 7.2 ounces).