Shaft Seal Hose Coupler - Reinforced Silicone Reducer w/ ClampsRestore a tight, leak resistant connection in your boats underwater gear with this reinforced shaft seal hose coupler. Designed as a flexible silicone style reducer connector, it joins mismatched pipe or hose diameters while absorbing vibration and minor misalignmenthelping protect driveline components and keep your bilge cleaner. Application: Shaft seal underwater gear hose connection (marine use) Construction: Flexible silicone style rubber body