The Z-Flex 4" Appliance Adapter SVALUH4 is a high-quality venting component designed to connect your appliance to the venting system securely. This adapter is made from durable AL29-4C stainless steel, suitable for both positive and negative pressure applications. It is UL tested and listed to UL1738/S636, ensuring it meets the highest safety standards for CAT II, III, and IV venting. The Model SVALUH4 is ideal for use with a variety of appliances, providing a reliable and efficient connection. Trust Z-Flex for superior quality and performance in your venting solutions.