Pentair Clean & Clear Plus/Quad D.E. Bottom Bulkhead

The Pentair Clean & Clear Plus/Quad D.E. Bottom Bulkhead (part number 190033Z) is a specialized, heavy-duty internal plumbing fitting engineered specifically for high-capacity Pentair Clean & Clear Plus cartridge filters and Quad D.E. filtration systems. Injection-molded from a thick-walled, high-impact, and chemical-resistant polymer composite, this structural union component passes directly through the lower port opening of the composite tank shell. Its primary functional role is to serve as the critical intake or discharge bridge, anchoring the internal plumbing grid or cartridge manifold firmly to the external pool return lines. When compressed by its accompanying retaining nut and heavy-duty O-ring, it establishes an absolute airtight and watertight seal capable of safely containing continuous hydraulic operating pressures up to 50 PSI without weeping or leaking. Built to endure constant exposure to high-velocity water flow, extreme thermal shifts, and highly concentrated sanitizing chemicals like chlorine, bromine, and seasonal acid washes, this durable fitting ensures unfiltered water cannot bypass the main filter elements. Due to its thick-walled, robust plastic architecture designed to withstand long-term structural stress and high torque, the individual bottom bulkhead component carries a net product and shipping weight of approximately 0.30 pounds (about 4.8 ounces).