ST-EXTEND Extension Tube

ST-EXTEND – Extension Tube for Air Sampling Tubes Used with Uniguard Duct Smoke Alarms The ST-EXTEND is an aluminum extension tube that mounts to Venturi tubes used with Uniguard Duct Smoke Alarms in ventilation systems when the original tube is too short. This tube is compatible with all our VR and ST series aluminum air sampling tubes. One or more ST-EXTEND tubes can be connected to extend our tubes to 0.6 m or 1.5 m lengths, depending on the duct width and installation requirements. Length 1.06 m. Watch our installation video, which shows how to easily install the ST-EXTEND extension tube onto a standard Venturi tube.