Check the listing for details. ÜREL Hydraulic Tank Filler Breather Cap Bayonet Lock Tearproof Gasket (Cap Only). Condition: New. Listed at 20.95 USD. Features a tearproof, long-life inner gasket compared to ordinary cork-gasketed hydraulic caps. Chrome plated outer surface. Bayonet type locking. Mounting flange and 3 pcs M5x10 screws are included. Metal cap diameter: 3.09 in (78.5 mm) Mounting flange outer diameter: 3.33 in (84.5 mm) This hydraulic cap is our own production. Factory-to-customer (F2C) sale. We provide high quality at reasonable prices. Hydraulic breather caps are an important component of hydraulic systems as they help to ensure the longevity and proper functioning of the system by maintaining the appropriate pressure and cleanliness of the hydraulic fluid.Features a tearproof, long-life inner gasket compared to ordinary cork-gasketed hydraulic caps. Chrome plated outer surface. Bayonet type locking. Mounting flange and 3 pcs M5x10 screws are included. Metal cap diameter: 3.09 in (78.5 mm) Mounting flange outer diameter: 3.33 in (84.5 mm) This hydraulic cap is our own production. Factory-to-customer (F2C) sale. We provide high quality at reasonable prices. Hydraulic breather caps are an important component of hydraulic systems as they help to ensure the longevity and proper functioning of the system by maintaining the appropriate pressure and cleanliness of the hydraulic fluid.