Pentair TR140/ TR140C-3 12" Lateral

The Pentair TR140/TR140C-3 12" Lateral (part number 154530 or 152229) is a specialized internal underdrain component engineered exclusively for the high-capacity Pentair Triton II TR140 and Triton C-3 commercial side-mount fiberglass sand filtration systems. Molded from a dense, high-impact, and chemical-resistant polymer composite, this 12-inch slotted tube threads directly into the lower central collector hub at the base of the filter tank, forming a radiating grid beneath the sand bed. Its primary structural role is to allow fully filtered water to pass seamlessly into the return plumbing while its precision-engineered micro-slots physically block fine silica sand or glass media from escaping back into the pool. Built to withstand extreme hydraulic pressures, heavy structural sand loads, and continuous exposure to concentrated pool chemicals, it ensures balanced water distribution during both the filtration and backwashing cycles. Despite its rigid, heavy-walled construction designed for commercial environments, this single elongated lateral arm is lightweight and easy to handle during internal media changes, carrying an individual product and shipping weight of approximately 0.30 pounds (about 4.8 ounces).