Brand: Moroso Manufacturer's Part Number: 63773 Part Type: Overflow and Recovery Tanks Product Line: Moroso Cooling System Expansion Tanks Summit Racing Part Number: MOR-63773 UPC: 084663637735 Recirculating: Yes Overflow Tank Material: Aluminum Overflow Tank Finish: Natural Shape: Rectangular Capacity: 1.25 quarts Length (in.): 4.625 in. Width (in.): 3.000 in. Height (in.): 5.625 in. Vented: Yes Drain Valve Included: No Inlet Quantity: 1 Inlet Attachment: Female threads Overflow Tank Inlet Size: 3/8 in. NPT Outlet Quantity: 1 Outlet Attachment: Female threads Overflow Tank Outlet Size: 1/2 in. NPT Overflow Tank Mounting: Bolt-in Mounting Hardware Included: No Quantity: Sold individually. Notes: Billet radiator filler neck accepts Moroso Racing Radiator Caps and standard size radiator caps， also has a barbed fitting for an overflow hose. Sight tube on side to check level. Moroso Cooling System Expansion Tanks These expansion tanks are perfect for cars with low-mount radiators to provide a convenient filling location and to bleed off unwanted air. Versions are now available with rugged 6061-T6 billet aluminum filler necks welded to the tank to withstand the continuous removal and installation of the cap. They're 100 percent pressure- tested to eliminate leaks， and they accept a standard-size radiator cap (not included).