PSS HS 50mm Shaft Seal 3-1/2" Stern Tube Seats Manufactured and kitemarked to British

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PSS HS 50mm Shaft Seal 3-1/2" Stern Tube Seats Manufactured and kitemarked to BritishThe PSS (Packless Sealing System) shaft seal is designed as a maintenance free alternative to the traditional packing glands and stuffing boxes. The PSS does not require a greaser drip to lubricate the shaft, if does not require packing and it doesn't need adjusting or maintaining once installed. The design of the PSS seal makes it 100% watertight when installed correctly to prevent water leaking into the bilge, and it also protects the propeller