304 Stainless Steel, 25ft long tube Short Cooling Coil fits up to 7 Gallon Fermentor Tall Cooling Coil fits 14 to 42 Gallon Fermentor Easy to install and sanitize bulkhead fittings 1/2" NPT Connections Includes two 3/8" 90 degree QuickConnector™ fittings! Dimensions: Short = 9.5in (tall) x 9in (diameter) Tall = 13.5in (tall) x 9in (diameter) Cooling Coil Manual