Qosina has introduced new dual check valves to their catalog of stock components. The valves enable injection and aspiration from separate ports of a single connector. They are molded from medical-grade materials; a polycarbonate housing with valves made from silicone. Options include part 80183 male luer slip (MLS) outlet port, female leur slip (FLS) inlet port, and female luer lock (FLL) control port, 1 psi cracking pressure (CP); 80186 MLS outlet port, FLS inlet port, FLL control port, 1.5-5 psi CP; and 80187 male luer lock (MLL) outlet port, FLS inlet port, FLL control port, 1.5-5 psi CP.