The Eastman Leak Detection & Thread Sealant Kit. Includes 2 Oz. bottle and 2 Oz. tube. Combines two essential products for secure gas connections. The leak detector is ideal for identifying leaks in natural, manufactured, and LP gas connections, as well as refrigerants and oxygen. Blue-tinted formula produces well-defined bubbles for improved visibility. Non-toxic and water-soluble formula. The pipe thread sealant provides a strong, leak-proof seal on threaded metal connections, resists vibration and pressure changes, and remains non-hardening for easy disassembly. Safe for common metals. Read all instructions carefully before using.