US Seal Shaft Seal [PS-3960 5/8" Buna Carbon] (PS-3960) cleaners Useful for lubricating seals

Useful for lubricating seals

Supports dependable hands-free control response

An impeller like this is useful because it does the real water-moving work inside the pump

injection check valve

It offers a targeted way to make the control point look intentional again

US Seal Shaft Seal [PS-3960 5/8" Buna Carbon] (PS-3960) cleaners Useful for lubricating sealsUS Seal Shaft Seal [PS 3960 5 8" Buna Carbon] (PS 3960) is a replacement pump shaft seal from US Seal Manufacturing, designed for pool and spa pump service where a worn seal can lead to water intrusion, dripping, or reduced equipment reliability. This part is intended for repair situations where the existing seal specification and part number match the pump being serviced. The PS 3960 5 8" Buna Carbon configuration helps restore the seal between the