Duct Accessories
ZipSet
Innovative duct access panels, sealing systems, and test-and-balance hardware engineered to simplify HVAC duct system installation, inspection, and ongoing maintenance.
Duct Access PanelsTest & Balance PortsDuct SealingInspection DoorsFire-Rated AccessCustom Fabrication
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UL Listed
Fire-Rated Products
All Gauges
Sheet Metal Duct
Quick Install
Tool-Less Latching
Custom
Sizes & Ratings
Product Lines
Solutions & Product Series
ZipSet manufactures duct access panels, inspection doors, and test-and-balance ports for HVAC sheet metal duct systems. Designed for fast, tool-free installation on rectangular and round ductwork, ZipSet access products allow mechanical contractors to meet code requirements for duct system access, inspection, fire damper maintenance, and air balancing — without cutting non-standard openings or compromising duct integrity.
Duct Access Doors
Standard and fire-rated access panels for rectangular and round ductwork
- Quick-latch door frame — installs in pre-cut duct opening in minutes
- Insulated and non-insulated models for low- and medium-pressure duct
- UL-listed fire-rated panels for penetrations through fire-rated assemblies
- Sizes from 6×6″ to 24×24″ — custom sizes available
- Gasket seal maintains duct pressure class on all four sides
- Zinc-coated steel or stainless options for corrosive environments
Test & Balance (TAB) Ports
Dedicated access ports for pitot tube, manometer, and probe insertion
- Pre-punched port locations with self-closing rubber plugs
- Accepts standard 3/8″ pitot tubes and temperature probes
- No drilling required in the field — port reinforcement included
- Low air leakage — SMACNA Class I duct standards compliant
- Spaced per SMACNA TAB requirements for system measurement points
- Available in single and multi-port strip configurations
Flexible Duct Access Collars
Retrofit access ports for existing ductwork and inaccessible locations
- Self-adhesive foam gasket — bonds to existing duct face without screws
- Quarter-turn door latch — tool-free open and close
- Compatible with flex duct, fiberglass duct board, and sheet metal
- Mold-resistant interior suitable for humid climates
- Code-compliant opening reinforcement on all four sides
- Contractor-friendly single-person installation
Fire Damper Access Doors
Dedicated access panels positioned to facilitate annual fire damper inspection
- Pre-located per NFPA 80 and NFPA 90A access requirements
- Latched hinged door with integral duct insulation block
- Sized to allow full visual inspection and damper reset
- UL-rated door assembly — does not reduce duct assembly rating
- Available in single and combination access/balancing port configurations
- Laser-etched panel labeling for inspection records
Why Choose ZipSet
Key Advantages
Fast Installation
Tool-less quarter-turn latching systems and pre-cut frame kits allow a single technician to install an access door in under 5 minutes — reducing labor cost on every duct run.
Fire-Rated Options
UL-listed fire-rated access panel assemblies maintain the fire and smoke rating of duct assemblies penetrating rated walls, floors, and ceilings — satisfying AHJ requirements without field modifications.
Code Compliance
ZipSet panels satisfy SMACNA, NFPA 90A, and mechanical code requirements for duct system access — simplifying inspection, commissioning, and TAB for every project.
Contractor Friendly
Single-person installation without special tools, pre-punched screw holes, and integral gaskets mean ZipSet panels go in faster and seal tighter than field-fabricated access solutions.
Custom Fabrication
Factory fabrication to project-specific sizes, pressure ratings, and insulation requirements ensures the right access panel for every duct size, system pressure class, and application.
Airtight Sealing
Compression gaskets on all ZipSet doors maintain SMACNA Class I and Class II duct leakage standards — preventing the energy waste and IAQ issues caused by leaking access openings.
Applications & Markets Served
Commercial Office BuildingsHealthcare & HospitalsSchools & UniversitiesRetail & Shopping CentresHotels & ResortsData CentersWarehouses & IndustrialGovernment & InstitutionalMixed-Use High-RiseRetrofit & Renovation ProjectsTAB & CommissioningFire Damper Inspection
Specify ZipSet on Your Next Project
Contact Capital Energy Equipment for product selection, submittals, and engineering support.