Pentair 420 SqFt Clean & Clear Plus Air Bleed Tube Assembly

The Pentair 420 SqFt Clean & Clear Plus Air Bleed Tube Assembly (part number 170028) is a specialized internal fluid-safety plumbing component designed exclusively for the vertical core structure of Pentair Clean & Clear Plus 420-square-foot cartridge filtration systems (model CCP420) and compatible Quad D.E. 80 filtration units. Extruded from a rigid, chemically inert PVC thermoplastic polymer, this specialized narrow conduit measures approximately 29-1/8 inches in length and features a fine mesh filter screen cap anchored at its intake tip. Its primary operational role is to stand vertically alongside the main cartridge element array, extending from the bottom collector manifold straight up to the peak dome zone inside the pressurized upper lid.

As water floods the pressure vessel, this tube acts as a continuous internal bypass channel that naturally siphons off pocketed air pockets, venting them down into the lower core plumbing and out of the filtration tank through the system's return line. This automatic, internal gas evacuation eliminates systemic pressure locks, prevents dangerous air-bound hammer shock waves, and ensures the filter tank can safely sustain continuous operating parameters up to 50 PSI without weeping or structural buckling under intense pump vibration surges. The fine mesh end-cap screen provides a vital mechanical barrier that prevents loose dirt particles, media, or debris from bypassing the filter pleats and re-entering the clean pool return network. Built to remain permanently submerged in a highly dynamic, chemical-rich aquatic framework, it completely resists brittleness, cracking, and corrosive degradation from high-strength pool sanitizers like chlorine, bromine, and salt-chlorine generator outputs. Due to its slender, hollow plastic pipe geometry and lightweight mesh end-cap assembly, this individual air bleed tube carries a net product and shipping weight of approximately 0.42 to 0.50 pounds (about 6.7 to 8.0 ounces).