Pentair 6" Tan V Thread Closure Kit

The Pentair 6" Tan V Thread Closure Kit (part number 154559) is a specialized replacement lid assembly engineered for various Pentair Triton and Triton II side-mount fiberglass pool and spa sand filters, as well as early-model Tagelus top-mount systems utilizing a 6-inch V-groove threaded neck. Injection-molded from a heavy-duty, UV-stabilized, glass-reinforced thermoplastic composite, this tan-colored kit includes the structural dome closure lid, a matching heavy-duty threaded locking ring, a high-flow manual air relief valve, and a coordinating compression O-ring gasket. Its primary structural role is to seal the main 6-inch top access port of the filter tank, forming an absolute airtight and watertight compression boundary that can safely withstand continuous high-velocity hydraulic pressures up to 50 PSI. The integrated manual air relief valve allows operators to safely bleed off trapped air pockets during pump startup, preventing dangerous pressure surges within the filtration system. Built to endure harsh outdoor weathering, relentless solar radiation, and continuous exposure to corrosive pool chemicals like chlorine and acid, this robust dome assembly remains easy to thread on and off during seasonal inspections. The complete closure kit carries a combined product and shipping weight of approximately 1.65 pounds.