BTI-AFT - Breakthrough Indicator with Auxiliary Filter

The BTI AFT is equipped with auxiliary filter trap to trap highly toxic substance from escaping to outside environment and protect the indicating layer from changing color in a highly contaminated surrounding environments. The indicator is 3.5-inch-tall, 1-inch diameter and are easily connected to the ¾ inch female NPT outlet of the carbon absorber or filter using the ¾ inch male NPT threading at the bottom of the indicator. Auxiliary Filter Trap is 1.6-inch-tall, 3.2-inch diameter and ¾” Female NPT Inlet.