The Stream33 PEX-B F1807 Crimp 3/4" PEX x 3/4" Sweat Brass Male Adapter is a high-quality fitting constructed from C46500 lead-free brass, ensuring safety and compliance in plumbing installations. Adhering to the ASTM Standard F1807, this adapter is manufactured to meet stringent quality and performance standards. It is designed to seamlessly integrate with PEX tubing that conforms to the ASTM Standard F876-877, providing versatility for a variety of plumbing projects. With its ability to handle a maximum pressure of 150 PSI and withstand temperatures up to 210°F, it's a key component in PEX, one of the most economical potable water plumbing systems.