Pentair FNS Tank Clamp with Hardware After 2/1993

The Pentair FNS Tank Clamp with Hardware After 2/1993 (part number 195351) is a heavy-duty structural safety component engineered to secure the upper and lower tank halves of classic Pentair FNS vertical grid D.E. (diatomaceous earth) pool and spa filters manufactured after February 1993. Fabricated from thick, high-tensile stainless steel, this complete circular band assembly wraps tightly around the central perimeter seam of the filter shell, creating a robust, leak-proof mechanical seal capable of safely containing the intense internal hydraulic pressure generated during standard filtration cycles. The assembly includes essential tensioning hardware—specifically a heavy-duty spring, flat washer, and a specialty barrel nut—which ensures uniform compression across the sealing O-ring to prevent dangerous pressure blowouts. Built to resist corrosion, chemical degradation, and harsh outdoor elements, this solid metal reinforcing band and its accompanying hardware weigh approximately 7.50 pounds, offering the necessary structural mass and durability to safely lock down high-pressure pool filtration systems.