Uniquely designed for the complete protection of refrigeration systems, NDL filter driers use XH11 desiccant with activated alumina and charcoal and are suitable for all refrigerants. Available as liquid line, biflow, suction line, shells, and replaceable cores with sweat, flare, and press-fit ends. Also available with Spectroline AR-GLO tracer wafers to reduce warranty repair costs and minimize service callbacks. Approved by all leading compressor and refrigeration equipment manufacturers.