The PYI PSS Dripless 0240M214 metric shaft seal is a dripless stuffing box and packing gland replacement for sailboat and power marine drivetrains. The PYI PSS packless dripless 0240M214 metric shaft seal is a mechanical seal that uses a self-aligning carbon-graphite stator to ensure a 100% watertight seal. The PYI PSS Dripless 0240M214 metric shaft seal will eliminate shaft wear and minimize corrosion. The PYI PSS Dripless 0240M214 metric shaft seal measures Shaft Size: 40 mm, Stern Tube O.D.: 2-1/4 inches thru 2-3/8 inches, Compressed Length: 8-1/8 inches