This Jones Stephens S04217 is a flexible ballcock connector. It features a leak-proof seal and exclusive compression fittings that enable this connector to perform in its maximum capacity. Installing this connector is really easy even in tight spaces, as it doesn't need any tools or soldering. Also, this lead-free product resists temperature from 33 degrees (F) up to 174 degrees (F). This S04217 has 3/8 inches OD, 7/8 inches BC, and a length of 12 inches. Having approved by NSF, this chrome-plated nut connector is safe to use.