The Trane DST1.5 (TUB12395) is a sampling tube designed for duct smoke detectors, enabling efficient and accurate detection of smoke within HVAC duct systems. Measuring 1.5 feet in length, this tube is ideal for small duct installations and works by drawing air from the duct into the smoke detector sensing chamber. Key Features Designed for use with duct smoke detectors 1.5-foot length suitable for smaller duct applications Ensures accurate air sampling across the duct cross-section OEM Trane quality for reliable system integration Simple installation with most duct detector housings Specifications Part Number: DST1.5 / TUB12395 Length: 1.5 ft Material: Durable, rigid plastic or aluminum (depending on model batch) Application: Duct smoke detector sampling Manufacturer: Trane Compatibility: Standard Trane duct smoke detectors (verify model-specific fit) Compatible Models (Short List) Typically fits Trane and compatible third-party duct smoke detectors Models vary; check your system specs for verification Why Choose This Item The DST1.5 sampling tube provides a reliable and cost-effective solution for enhancing smoke detection in ducted HVAC systems. With OEM-grade construction and easy installation, it ensures your smoke detection system functions at peak safety and performance standards.