1. Home
  2. Pass-Throughs
  3. Modular Cleanroom Pass-Throughs

Modular Cleanroom Pass-Throughs
For use on Terra's Hardwall Clean Rooms only

Cleanroom Passthrough
Terra customizes to meet
special requirements
for pass-through sizes,
materials and configurations
(No. 6704-95C shown). 
Call to discuss your application.
LiftLatch Now with all-stainless steel LiftLatches™ for cleaner operation
Features Key

A Wall-mount models feature versatile mounting brackets (frames)
B Durable, reliable door interlock prevents cross contamination
C Non-corroding stainless steel LiftLatches eliminate hinge strain for long service life
  Floor-mount models include cart ramps
  Options include HEPA air showers, CleanTops, UV sterilization, foot-operated doors
  Designed to mount on any Terra hardwall or BioSafe® Modular Cleanroom
canada and us Ul logo Wafer_CE
All standard chambers below without electrical add-on components.

  • Modular panel mounting system allows installation at any modular clean room location
  • Allows easy transfer of materials without contamination
  • Keeps particle counts low by eliminating unnecessary personnel entry
  • Automatic mechanical interlocks minimize the risk of cross contamination
  • Available in many sizes to meet your application requirements
  • Custom sizes, designs and materials are no problem—just let us know your specs!
Firmlok Interlock
automated mechanical

Firmlok Interlock illustration
Standard Installation:
Mechanical interlock
requires that both doors close on the same sidewall
These pass-throughs enhance cleanliness of a Terra hardwall Modular Clean Room by eliminating unnecessary personnel entry.

Clean, Durable
Available in several standard sizes, these chambers make it easy and convenient to pass items in and out of a clean room without contaminating the controlled environment. Each features dual stainless-steel reinforced access doors for strength and rigidity. The unique door construction ensures a long, low-maintenance service life. Chrome-plated LiftLatches™ provide security and won't strain door hinges.

FirmLok™ mechanical interlocks automatically prevent cross-contamination by making it impossible to open a door as long as the facing door is open or ajar. These no-maintenance, highly reliable devices require no power or other service. Interlocks are automatically engaged when latches are lifted to open the door; no other manual maneuvering is required. Optional stainless steel shelves can be installed on chrome-plated racks that allow height adjustment in 2" (51 mm) increments.

Select among four materials, in many standard sizes. A separate mounting panel allows installation at any location you specify on a Terra hardwall Modular Clean Room.

floor-mounted pass-through ramp detail
Before you order,
  Consider Your Options!
    QuickQuote Planner
    Specialty Plastics
Stainless steel floor-mount
pass-through chamber ramp with
angled slopes allows easy transport
of wheeled carts.

Modular Clean Room Pass-Throughs
W" x D" x H"
304 Stainless Steel
304 Stainless Steel** Acrylic* Static-Dissipative PVC
Cat. # Price Cat. # Price Cat. # Price Cat. # Price
12 x 12 x 12
(305 x 305 x 305)
6704-80C $ 2,584 6704-85C $ 2,320 6704-90C $ 1,315 6704-95C $ 1,535
18 x 18 x 16
(457 x 457 x 406)
6704-81C $ 3,637 6704-86C $ 3,247 6704-91C $ 1,667 6704-96C $ 2,420
18 x 18 x 24
(457 x 457 x 610)
6704-82C $ 3,983 6704-87C $ 3,493 6704-92C $ 1,879 6704-97C $ 2,687
24 x 24 x 24
(610 x 610 x 610)
6704-83C $ 4,697 6704-88C $ 4,129 6704-93C $ 2,007 6704-98C $ 2,921
24 x 24 x 36
(610 x 610 x 914)
6704-84C $ 6,028 6704-89C $ 4,771 6704-94C $ 3,465 6704-99C $ 3,604
** Includes static-dissipative PVC viewing windows.
*Acrylic is damaged by alcohol and other cleaning agents.

  Steel pass-through chambers with internal dimensions of 24" x 24" x 24" or less, like the one in this photo, may be mounted in tempered glass cleanroom panels without the need for support frames. By avoiding support frames, facilities save on cost and personnel have fewer surfaces to sterilize. Pass-throughs must be center-mounted to evenly distribute the chamber's weight. Talk to a Terra Product Specialist about your room specifications.
glass mount pass through

Mounting Panel
For Pass-Through
with Outside Dimensions
W" x D" x H" (mm)
Mounting Panel
For installation on a standard
7' (2134 mm)-high Terra Modular Cleanroom
Cat. # Price
12 x 12 x 12 (305 x 305 x 305) 6704-70 $ 617
18 x 18 x 16 (457 x 457 x 406) 6704-71 $ 617
18 x 18 x 24 (457 x 457 x 610) 6704-72 $ 617
24 x 24 x 24 (610 x 610 x 610) 6704-73 $ 617
24 x 24 x 36 (610 x 610 x 914) 6704-74 $ 617

File Type File Name Publication Date
Video Cleanroom Pass-Through Features and Selection Guide
Video introduction of pass-through designs, construction and accessories for Terra's family of cleanroom pass-through chambers. Discover how these chambers increase efficiency and reduce contamination with between-room transfer of samples and supplies.
Video Cleanroom Pass-Through Operational Benefits
Learn about the twelve ways Terra cleanroom pass-through chambers can help overcome your operational challenges such as maintaining cleanliness, reducing cost, and transferring over-sized items into the controlled environment.
Click to leave a message. 24-hour sales and tech phone support, M - F
Go to...
Go To