For HVAC installers, builders, and GCs
Invented for simplicity.
Choose the connection, plan the mounting and finish, then open the instructions for that model.
On site
Three practical checks.
Choose the connection
High-velocity options for Unico, SpacePak and Hi-Velocity Systems by ESP include Twist Fit, 2-inch clamp, 2.5-inch clamp and 3-inch connections, depending on the model. Traditional HVAC families connect directly to round duct or fit a register/boot opening. Match the selected configuration to the system.
Plan the mounting and finish
Rough-in and push-through are different paths. Confirm the opening, the finished surface, and whether the selected variant is built for that path.
Use the model instructions
Open the one-page guide or video for your model. Mounting, connection and finishing details stay together, ready for the job.
Model selection
Families, connections, and guides.
Use this table to reach the right catalog family and instructions. Size, connector, and installation variant are selected on the product.
| Family | Connection to check | Installation guide | Shopping route |
|---|---|---|---|
| Conventional, direct-to-duct | Round duct diameter offered on the product (for example 4", 5", or 6"). No register box. | Direct-connect guides | Direct to duct |
| Conventional, register/boot | Register or boot opening size. Confirm the box before ordering. | Register/boot guides | Traditional HVAC |
| High velocity, straight or 90-degree | Twist Fit, 2" clamp, 2.5" clamp, or 3-inch connections, depending on the model. Match the connector to the system, then choose straight or 90-degree and the installation variant. | High-velocity guides | High-velocity outlets |
| High velocity, floor | Twist Fit, 2" clamp, or 2.5" clamp, plus underside access and the thickness range on the product. | Floor outlet guide | Floor outlet |
Bidding
Ready for the project schedule.
Build your allowance from the selected products, quantities and current catalog prices. Use the drawings for each configuration, and send us the schedule for project-specific requirements.
Installation
The right instructions, close at hand.
Find installation instructions and videos for conventional and high-velocity products.
Project support
From a single outlet to a larger project.
Shop the catalog directly, or get help with quantities, product selection, and custom requirements.
Discuss your project →