The Cedervall forward oil lubricated stern-tube seals are available in two main versions, the new “SeaQual” type and the “M” type. SeaQual is available in a standard version, with all essential parts made split and a retrofit version, with all parts made split. The M type is available in a semi-split version, type MLX, and a non-split version, type MDL.

A fully split inboard water lubricated seal, type CREW, is also available.

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SeaQual - forward oil lubricated split stern tube seal. With built in preasure equalizer and "free-floating" alignment ring. Available for shaft diameters 205-1200 mm.

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MLX - forward oil lubricated semi-split stern tube seal. With "free-floating" alignment ring. Available for shaft diameters 92-1029 mm.

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MDL - forward oil lubricated non-split stern tube seal. With "free-floating" alignment ring. Available for shaft diameters 66-1029 mm.

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CREW - inboard water lubricated split stern tube seal. With "free-floating" alignment ring. Available for shaft diameters 186-611 mm.