Pentair TR50 and TR60 Air Relief Tube

The Pentair TR50 and TR60 Air Relief Tube (part number 150040) is a specialized internal venting component designed exclusively for the vertical air elimination network of Pentair Triton II side-mount sand filtration systems (specifically the 21-inch diameter TR50 and 24-inch diameter TR60 models manufactured after November 1999). Extruded from a flexible, high-density polymer composite, this narrow 3/8-inch diameter internal line measures approximately 18 inches in length. Its primary operational role is to facilitate automated internal venting; it snaps into the lower collector hub, extends vertically alongside the central standpipe, and anchors at the top fluid level to continuously capture and route pocketed air from the crown of the filter vessel. By automatically funneling trapped air down through the manifold before it can compress or disrupt fluid dynamics, the tube eliminates dead zones, maintains a completely flooded hydraulic state, and ensures the sand tank safely sustains continuous operating parameters up to 50 PSI without dangerous air-bound pressure surges. Engineered to survive permanent submersion in dense silica sand beds, severe seasonal temperature shifts, and constant contact with highly chlorinated pool water, this resilient tubing completely resists kinking, flattening, and chemical brittleness. Due to its slender, hollow, and lightweight plastic structure, this individual air relief tube carries a net product and shipping weight of approximately 0.10 to 0.25 pounds (about 1.6 to 4.0 ounces).