Pentair TR100C/TR140C 3/8" Air Relief Tube Connector

The Pentair TR100C/TR140C 3/8" Air Relief Tube Connector (part number 150036 or 150036Z) is a specialized miniature plumbing fitting designed exclusively for the internal air management network of high-capacity Pentair Triton II commercial side-mount sand filtration systems. Injection-molded from a high-impact, chemical-resistant polymer composite, this compact adapter features dimensions measuring approximately 1-1/8 inches in length by 1/2 inch in height. Its primary operational role is to anchor the 1/4-inch internal diameter by 3/8-inch outside diameter (OD) flexible vinyl air-bleed tubing securely to the internal bulkhead manifold or strainer grid at the top peak of the filter tank. This connection bridges the pathway that allows compressed gas pockets to vent smoothly from the pressurized dome during daily pump cycles, ensuring the commercial fiberglass tank remains fully flooded with water and protected from sudden pneumatic pressure spikes up to 50 PSI. Engineered to endure continuous submersion in highly chlorinated pool water, commercial bromine, and seasonal chemical acid washes without warping, cracking, or losing its compression seal, this tiny connector prevents water bypass within the venting loop. Due to its streamlined, hollow plastic architecture, this individual air-bleed connector is exceptionally lightweight, carrying a nominal product and shipping weight of approximately 0.01 to 0.05 pounds (about 0.16 to 0.80 ounces).