Abstract: A plug for a sink drain includes a body fitted to a sink, a connector with a spring and secured to the body, a cap mounted on the connector, and a knob mounted on the cap. The spring extends through the connector to urge against the cap whereby the plug has a raised mode in which water can drain from the sink and a lowered mode in which water is retained in the sink.

Abstract: An inner pipe for a faucet with a retaining cut out includes a tubular body and a cap mountable on the body. A threaded first end is formed on the body to securely mate with a threaded socket formed in the faucet. A polygonal is formed on a second end of the body and includes a circumferential slit. The cap has a ring and a flange. The ring has a polygonal bore configured to mate with the tubular exterior and provide a limited rotational movement therebetween. The flange has a lug radially extending therefrom and configured to mate with the retaining cut out of the faucet. Two resilient elements are formed on the cap and each has a tooth to engage in the circumferential slit.