Product Information Seal: Natural Rubber Working Pressure: 1000 PSI Select a Product Part NumberMaterialSize SH38STSStainless Steel1-1/2", Medium SH25STSStainless Steel1", Small 08/013/25/000SG Iron3/8", Small 08/013/22/000SG Iron1/2", Small 08/013/19/000SG Iron3/4", Small 08/013/16/000SG Iron1", Small 08/013/13/000SG Iron1-1/4", Small SH13STSStainless Steel1/2", Small SH20STSStainless Steel3/4", Small SH50STSStainless Steel2", Medium 08/013/06/000SG Iron2", Medium 08/013/10/000SG Iron1-1/2", Medium