CRD suction liners offer many features to satisfy all your fluid collection, retention and disposal requirements, such as an orthopedic port on the 1500 and 3000cc sizes; a thin, semirigid, seamless canister to minimize the possibility of contamination; and a locking lid to maintain a closed system. Liners fit into a hard, reusable outer canister.- Suction Canister Liner, 3000cc with Ortho Port, 50/cs (Manufacturer BackorderInventory Limited when Available)