The NEW ALCO CONTROLS EXTRA CLEAN FILTER DRIER EK-163S is a high-quality filter dryer designed for HVAC and refrigeration systems. With a 3/8 ODF solder connection, this product ensures a secure and reliable attachment for efficient filtration. The Alco Controls brand is known for its durable and efficient components, making this filter dryer a trusted choice for maintaining clean and healthy air in commercial and industrial settings.