Curity Connecting Suction Tubing 1/4 X 6' CovidienModel No: KND42450. Stock Status: Quantity Limited. CURITY Surgical Suction Connecting Tubing is available with female molded connectors (male connector also included) in non-sterile packaging. CURITY tubing has minimal coil memory and comes in a wide range of sizes. Starting at: $15.95.