The T&S Brass 5EF-FILTER Replacement Filter is the perfect accessory to keep your Equip control module in first-rate working condition. It easily swaps out with the one that was originally included in the package - installation and replacement have never been this easy! This T&S Brass Replacement Filter utilizes an O-Ring seal and an M20 x 1.5 male thread. It includes a filter screen, making cleaning and maintenance easier. More details are available in the specification sheets. The T&S Brass 5EF-FILTER is recognized for meeting the required environmental standards. T&S is among the first commercial plumbing manufacturers and has set the quality standard in the industry for almost 50 years.