Low Pressure 45˚ Boot Saddles & Laterals
High-Efficiency Components for Consistent Airflow in HVAC Applications
At Spiral Manufacturing Co., Inc., we have built a reputation over the years for producing reliable, high-quality parts that meet the exacting demands of low-pressure air systems. Our low-pressure boot saddles and laterals are designed for maximum performance, easy integration, and long-lasting life. Carefully crafted and made to withstand demanding conditions, they are a part of excellent airflow and control within business and industrial environments.
Engineered for Low-Pressure Efficiency
Our low-pressure boot saddles are expertly fabricated to provide a secure, airtight connection between spiral duct mains and branch ducts. Their design ensures symmetrical distribution of the airflow and structural support under low-pressure situations. The fittings are designed in various sizes and layouts, which makes them readily adaptable to fit in varied duct layouts and system specifications. We also offer low-pressure boot laterals that are uniquely built for use where an angled takeoff is required from the primary duct. Our laterals provide an efficient transition to protect airflow speed and prevent turbulence and noise within the system. With accurately constructed angles and streamlined design, our boot laterals permit smooth, unimpeded airflow within the network.
Low Pressure Fittings for Residential and Light Commercial HVAC Applications
45° Boot Saddle
Saddles are priced by branch size (D), then pipe size. Choose D, then choose XX (denotes pipe size). Thus, a 6″ branch off a 16″ pipe is 2-0650116. L=(Dx1.414) + 4″
45° Lateral
Laterals are priced by body then branch. Choose A, the body size and D, the branch, D=XX in the part number. Example: 6x6x4 = 2-06XX501 or 2-0604501. *Note: L = (D x 1.414) + 6
| 45° Boot Saddle | |||
| D | L | Gauge | Part # |
| 3 | 8 1/4 | 26 | 2-03501XX |
| 4 | 9 5/8 | 26 | 2-04501XX |
| 5 | 11 1/8 | 26 | 2-05501XX |
| 6 | 12 1/2 | 26 | 2-06501XX |
| 7 | 13 7/8 | 26 | 2-07501XX |
| 8 | 15 1/4 | 26 | 2-08501XX |
| 9 | 16 3/4 | 26 | 2-09501XX |
| 10 | 18 1/8 | 26 | 2-10501XX |
| 11 | 19 1/2 | 26 | 2-11501XX |
| 12 | 21 | 24 | 2-12501XX |
| 14 | 23 3/4 | 24 | 2-14501XX |
| 16 | 26 5/8 | 24 | 2-16501XX |
| 18 | 29 1/2 | 22 | 2-18501XX |
| 20 | 32 1/4 | 22 | 2-20501XX |
| 22 | 35 1/8 | 22 | 2-22501XX |
| 24 | 38 | 22 | 2-24501XX |
| XX denotes Pipe Size | |||
Other sizes available
| 45° Lateral | |||
| D | L | Gauge | Part # |
| 3 | *See note | 26 | 2-03XX51 |
| 4 | *See note | 26 | 2-04XX51 |
| 5 | *See note | 26 | 2-05XX51 |
| 6 | *See note | 26 | 2-06XX51 |
| 7 | *See note | 26 | 2-07XX51 |
| 8 | *See note | 26 | 2-08XX51 |
| 9 | *See note | 26 | 2-09XX51 |
| 10 | *See note | 26 | 2-10XX51 |
| 11 | *See note | 26 | 2-11XX51 |
| 12 | *See note | 24 | 2-12XX51 |
| 14 | *See note | 24 | 2-14XX51 |
| 16 | *See note | 24 | 2-16XX51 |
| 18 | *See note | 22 | 2-18XX51 |
| 20 | *See note | 22 | 2-20XX51 |
| 22 | *See note | 22 | 2-22XX51 |
| 24 | *See note | 22 | 2-24XX51 |
| XX denotes D or Branch Size | |||
Other sizes available
Durable Construction and Application Versatility
Our low-pressure boot saddles and laterals are made of high-quality galvanized steel, with optional coatings available for additional corrosion protection in harsher environments. Their rugged construction ensures long-term reliability even under prolonged conditions of service. Our products are widely used in:
Features include:
- Commercial air conditioning equipment
- https://www.spiralmfg.com/industrial-ventilation-systems/
- Dust collector and exhaust services
- Environmental control systems
Each component is precision-welded or spot-jointed to our strict standards of quality, assuring leak-free performance and compatibility with other low-pressure spiral pipe systems.
Seamless Installation
Our low-pressure boot laterals and saddles, integrated into your HVAC design, offer installation convenience without sacrificing performance. Optimized fittings for standard duct sizes are available in configurable configurations. These save time for installers through simpler alignment, reduced labor, and consistent airflow delivery at every junction. Additionally, the design of our boot saddles supports various angles and orientations to accommodate unique project layouts. Whether connecting vertical branches or offset laterals, our products offer flexibility and consistency in performance, keeping systems running efficiently from day one.
Built for Precision and Lasting Performance
What sets our low-pressure duct components apart is our dedication to precision. Every product is fabricated in our state-of-the-art facility, where strict attention to detail ensures that each boot, saddle, or lateral meets exacting specifications. Our experienced manufacturing team ensures that every angle, joint, and seam contributes to optimized air movement and a longer system lifespan. We understand that air distribution systems are only as reliable as their components. That’s why we work closely with contractors, system designers, and engineers to provide solutions that meet both immediate needs and long-term operational goals. Our team can assist in selecting the right boot saddle or lateral for your system, ensuring proper sizing, orientation, and airflow integrity.
Innovative Fabrication and Expert Support for Duct System Success
Choosing the right components for your HVAC system is critical to performance, energy efficiency, and regulatory compliance. We combine decades of experience with a forward-thinking approach to fabrication and system integration. Our highly trained staff are available to provide support throughout the design and installation process, helping you achieve the optimum system result with as little fault or downtime as possible. With continued investments in manufacturing innovation and customer support, we’ve positioned ourselves as a leading resource for specialized duct fittings, including low-pressure boot saddles, boot laterals, and low-pressure spiral pipe systems. Whether you’re outfitting a new facility or upgrading an existing duct network, our solutions are engineered to deliver long-term value.
Experience, Craftsmanship, and Engineering You Can Rely On
Spiral Manufacturing Co., Inc. is committed to producing industry-standard parts that are beyond compare in form, function, and reliability. Our low-pressure boot saddle and laterals are just one component of our full line of products that is designed to meet the dynamic demands of air handling and HVAC systems today.
Features include:
Contact us today and learn more about our full product line and how we can help you with the next project with precision-engineered solutions.