Snap-Lock Pipe
GSI Snap-Lock pipe is an easy-to-use, easy-to-ship, ductwork solution for the low-pressure side of an HVAC system. Available with or without our patented GreenSeam® factory sealed technology. Yellow Union Label manufacturing is standard on these products.
High Efficiency Take-Offs
GSI’s most versatile factory sealed fittings, combining efficient use of space and optimal airflow. Our HETOS are available in three styles to suit virtually every installation need. Yellow Union Label manufacturing is standard on these products.
Conicals
GSI’s traditional factory sealed round tapered take-off with a large base creating less static and total pressure drop than other fittings. Our Conicals are available in two installation styles, spin-in and press-on. Yellow Union Label manufacturing is standard on these products.
Starting Collars
GSI’s most cost-effective factory sealed fitting for beginning a new duct run from the trunk line. Available in three installation styles and multiple lengths to suit virtually every installation need or budget. Yellow Union Label manufacturing is standard on these products.
Couplers
Designed to join two straight duct runs together. GSI couplers are factory sealed so no external sealant is required at this connection and are available in two sizes, 6 and 8 inch to accommodate multiple installation needs. Yellow Union Label manufacturing is standard on these products.
In-Line Sleeve Dampers
When additional air balancing is required, GSI’s in-line sleeve damper has been specifically engineered to work with our GreenSeam Plus pipe. The in-line damper provides the best way to keep the system factory sealed and add supplemental system air balancing. Yellow Union Label manufacturing is standard on these products.
Tee-Joints
Designed to branch a single duct run into two at a 90-degree angle. GSI tee joints are available in two variations, factory sealed and unsealed. Yellow Union Label manufacturing is standard on these products.
Adjustable Elbows
Designed as a way to efficiently turn a straight run of duct. GSI elbows are available in two styles, 45 and 90 degree to accommodate multiple installation needs. Yellow Union Label manufacturing is standard on these products.
Saddle Taps
GSI’s factory sealed take-off for round duct. Manufactured with a curved one-inch flange and peel and stick gasket, our saddle tap installs easily on round duct without the need for external sealing. Yellow Union Label manufacturing is standard on these products.
Reducers and End Caps
The perfect accessories for any low-pressure duct system. GSI reducers and end caps are factory sealed and require no external sealing when paired with GreenSeam Plus pipe. Yellow Union Label manufacturing is standard on these products.