Pentair Quad D.E. Clamp Band Nut

The Pentair Quad D.E. Clamp Band Nut (part number 194997Z) is a specialized, heavy-duty replacement fastener engineered specifically for the tension control clamp assembly found on Pentair Quad D.E., FNS Plus, and Clean & Clear Plus filtration systems. Machined from solid, corrosion-resistant brass to prevent thread galling under extreme pressure, this specialized barrel nut threads onto the long T-bolt of the stainless steel outer tank clamp. Its structural function is to safely compress the heavy-duty tension spring, locking the top and bottom halves of the filter tank together to maintain a watertight boundary capable of withstanding standard internal operating pressures. Because it serves as a critical structural safeguard preventing high-pressure tank separation during standard pump cycles, it features thick walls and robust threading built to tolerate repetitive tightening and exposure to harsh pool chemicals. Despite its dense metal composition and rugged construction, this vital safety component is highly compact, carrying an individual product and shipping weight of approximately 0.15 pounds (about 2.4 ounces).