Pentair Lid Closure Kit

This kit is designed for specific Pentair filtration systems using a buttress thread pattern. You should verify your filter model number against the manufacturer's parts diagram to ensure this kit matches your specific housing, as thread types can vary significantly between models.

A buttress thread is a specialized, heavy-duty thread design used in applications where high pressure is involved, such as pool filter tanks. It is engineered to withstand significant force, ensuring the lid stays securely fastened under the pressure of your pool's circulation system.

No, this is a closure kit specifically for the locking mechanism. It typically includes the components necessary to secure the lid to the tank body, but it does not include the filter lid itself or the O-ring seal.

Generally, you can install this kit using standard hand tools. However, ensure the threads are clean and free of debris before installation to prevent cross-threading, which can damage the housing and compromise the seal.

It is highly recommended. While the closure kit secures the lid, the O-ring is what actually creates the watertight seal. Replacing both at the same time is a best practice to prevent leaks and ensure the system maintains proper pressure.