Abstract: A closure assembly for a cell culture apparatus includes a port and a snap cap. The port has an annular sidewall defining an opening in communication with a cell culture chamber of a cell culture apparatus. The sidewall has (i) external threads for cooperating with internal threads of a twist cap and (ii) an annularly protruding snap cap engagement feature. The snap cap has a top and an annular sidewall extending from the top. The sidewall of the snap cap has an inwardly annularly projecting element configured to engage with the annularly protruding snap cap engagement feature of the port such that, when fully engaged, the snap cap is not readily removed from the port by unaided human force.

Abstract: A cap for use in a neck of a laboratory vessel, such as a roller bottle, is disclosed. In embodiments, the cap is assembled from two parts, an annular skirted cap body and a cap insert. In embodiments the cap insert has integral connectors for attaching tubing, vents, filters, or the like. In embodiments, the cap insert fits into the annular skirted cap body through a rotatable fitting. In embodiments, when the cap is assembled, the top portion of the cap, having integral connectors, is rotatably fitted to the annular side wall of the cap.

Abstract: A closure assembly for a cell culture apparatus includes a port and a snap cap. The port has an annular sidewall defining an opening in communication with a cell culture chamber of a cell culture apparatus. The sidewall has (i) external threads for cooperating with internal threads of a twist cap and (ii) an annularly protruding snap cap engagement feature. The snap cap has a top and an annular sidewall extending from the top. The sidewall of the snap cap has an inwardly annularly projecting element configured to engage with the annularly protruding snap cap engagement feature of the port such that, when fully engaged, the snap cap is not readily removed from the port by unaided human force.

Abstract: A cap for use in a neck of a laboratory vessel, such as a roller bottle, is disclosed. In embodiments, the cap is assembled from two parts, an annular skirted cap body and a cap insert. In embodiments the cap insert has integral connectors for attaching tubing, vents, filters, or the like. In embodiments, the cap insert fits into the annular skirted cap body through a rotatable fitting. In embodiments, when the cap is assembled, the top portion of the cap, having integral connectors, is rotatably fitted to the annular side wall of the cap.