The 093 check valve is an ultra miniature side-exit check valve. Weighing only 0.14 grammes nominal, the 093 Lee Chek offers a 90% weight saving over the 187 version and is 50% shorter, resulting in a corresponding reduction in installation boss size and weight. Available in a forward flow configuration, the new Lee Chek is constructed entirely of stainless steel and features a hard, metal to metal seat for durability and long life.