Comparison : Item # 108HSS1/8, St. St. 316 Pipe Cap, Female NPT Thread 1/8”
Item # 108HSS1/4, St. St. 316 Pipe Cap, Female NPT Thread 1/4”
Item # 108HSS3/8, St. St. 316 Pipe Cap, Female NPT Thread 3/8”
Item # 108HSS1/2, St. St. 316 Pipe Cap, Female NPT Thread 1/2”
Item # 108HSS3/4, St. St. 316 Pipe Cap, Female NPT Thread 3/4”