The CTS5-005 from Spears is a EverTUFF 1-Step CPVC CTS Cement w/ Dauber, Medium-Body Fast-Set, Yellow, 4oz (0.25 pint). It's intended for use with CTS (Copper Tubing Size) CPVC pipe and fittings up to 2" in size. This 1-step cement is formulated for use without primer if local code permits. Compatible with Spears, Lasco and other brand pipe and fittings. Direct replacement for Oatey FlowGuard Gold cement.