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Terra Part # Price Ships in
120 V PVC 304 or 316 Stainless Steel ISO 5 Flush Wall 24" 24" 24" 2635-10B-2-316-R 69421 $33,045 0-2 Days 2
Quick Ship+ Available Only 2 left in stock
120 V PVC 304 or 316 Stainless Steel ISO 5 Flush Wall 30" 30" 30" 2635-21B-2-316-R 69428 $33,867 16-26 Days 3
120 V PVC 304 or 316 Stainless Steel ISO 5 Flush Wall 36" 36" 24" 2635-12B-2-316-R 69423 $37,323 0-2 Days 4
Only 1 left in stock
120 V PVC 304 or 316 Stainless Steel ISO 5 Flush Wall 36" 36" 48" 2635-16B-2-316-R 69427 $41,404 16-26 Days 5
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Custom-configured product. Contact Terra by phone, chat or email for a project-specific quote.
Custom-configured product. Contact Terra by phone, chat or email for a project-specific quote.
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Product Details
Product Details
  • Available ISO Ratings: ISO 5, ISO 6, ISO 7, ISO 8
  • CleanMount design allows for installation without drilling and prevents cleanroom shutdown for rapid servicing or replacement
  • Provides a dry, cold environment for transferring temperature-sensitive samples
  • Integrated 1050 BTU closed-loop refrigeration module designed to maintain temperatures as low as 5°C
  • Temperature controller automatically maintains the set-point programmed by the user
  • Includes all of the features of a standard Smart® Pass-through in addition to the refrigeration module
  • Double-wall, stainless steel chamber insulated with ½"-thick polyurethane foam
  • Continuous-seam 304 or 316 stainless steel welding
  • CleanMount® system allows fast installation without any fasteners, flush with the wall surface
  • Electronic door interlock automatically prevents cross-contamination by preventing both doors from opening simultaneously
  • LED status bar above the door alerts personnel that the interlock is engaged
  • Wireless alert-chimes ring when a pass-through door is left open
  • 316-stainless steel, ergonomic LiftLatches ensure a snug door seal and spring open with a smooth pull
  • Non-outgassing gasket mechanically adheres to the stainless steel door to form a tight-fitting, uniform seal
  • PVC windows are chemical-resistant
  • Wall braces are included with each pass-through to support the increased weight of the refrigerated chamber

Marks & Listings: UL, ULC

Smart® CleanMount® Refrigerated Pass-Through Chambers

  • Smart Passthrough Watch Terra's Smart Pass-Through Video
  • CleanMount pass through and rack educational animation Watch Terra's CleanMount® Pass-Throughs and Racks Video
  • Cleanroom passthrough chamber with 3 interlocking doors for USP 800 hazardous compounding Smart® Pass-Through with “T” Shape 3-Door Design for USP 800 Hazardous Compounding
  • Smart® Pass-Through Chambers by Terra Universal
  • Refrigerated Smart passthrough chamber with 90 degree corner for pharmacy cleanroom Refrigerated Smart® Passthrough with 90 Degree Corner to Transfer Active Pharmaceutical Ingredients
  • Smart pass-thru pharmacy refrigerator for sterile pharmaceutical cleanroom Smart® Pass-Thru Pharmacy Refrigerator for USP797 Sterile Pharmaceutical Cleanroom
  • Cleanroom Pass-Through Chamber Video Overview Cleanroom Pass-Through Features and Selection Guide
  • this video shows how the hands-free operation of the automatic pass-through door minimizes the potential for touch contamination Hands-Free, Automatic Pass-Through Door
Smart Passthrough
CleanMount pass through and rack educational animation
Cleanroom Pass-Through Chamber Video Overview
this video shows how the hands-free operation of the automatic pass-through door minimizes the potential for touch contamination
Features & Benefits

Features and Benefits

Learn More: CleanMount CleanSeam

CleanMount CleanSeam Pass-Through Chamber

CleanMount™ Design Allows Servicing or Replacement without Cleanroom Shutdown!
The simplicity of this CleanMount clamping system makes removal of the pass-through chamber just as easy as installation. If the wall cut-out framing is properly sealed prior to installation, the pass-through can be quickly removed and replaced without ever having to shut down the cleanroom. Maintain the positive-pressure differential and protect the cleanroom environment by sealing off the "dirty side" with plastic sheeting prior to removal. Loosen the lag bolt so that the pass-through lifts out of the wall without contaminating the room. Once out, the pass-through can be serviced, modified, or even replaced with an upgraded version to accommodate new applications.
A - Inside of flush-mount bracket on opposing side
B - Bolt guide extending from nut welded to opposing bracket
C - Mounting bolt (one, two or three per side, depending on chamber height) - standard sizes accommodate any wall thicknesses
D - Mounting bracket
E - Bracket cover
F - Standard wall (masonry or drywall)
Finish cut-out framing to minimize contamination exposure during servicing Terra's quick-mount system installs in under five minutes, regardless of wall thickness and without contamination
Access Clearances 
Width = W (nominal) – 1.88”
Depth = D (nominal) – 0.12”
Height = H (nominal) – 1.25”

Critical Environment Solutions

Terra's mission is to help customers in highly regulated industries transform the world with critical environment solutions that improve health, safety, performance, and yields. These environments may comply with stringent UL, ISO, IEST, ASTM and OSHA standards and local requirements.

Lift-Off, Non-Shedding Door Hinges

Non-shedding, barrel-type door hinges allow the doors to lift off for thorough cleaning and decontamination (no tools required). Unlike industry standard continuous designs, these hinges comply with strict ISO levels.

Interlock Status Lights

Prevent operator damage! A green light bar indicates the door is available for use, with the electronic interlock disengaged. The bar turns red when the opposing door is open to indicate the electronic interlock is engaged.

CleanMount™ Quick Install System

Clean-Mount™ clamping design allows pass-through installation flush against a cleanroom wall in a few minutes, without drilling into the finished wall; mounting brackets clamp flush against walls of any thickness.

Easy Installation Simplifies Cleanroom Commissioning

Installing conventional passthroughs can be very messy, making it impossible to perform while a cleanroom is operational. Terra’s innovative CleanMount® fastening system changes that, allowing for clean installation without drilling or penetrating the cleanroom wall. Framing a CleanMount® passthrough chamber on a finished cut-out eliminates the need for cleanroom shut-down during installation or service.

Rerigerated Pass-through Chamber

The interior of the Refrigerated Smart® Pass-Through features a compact ceiling-mounted fan unit to circulate cool conditioned air inside the chamber. The cooling fan system connects to the compressor and condenser system which is externally mounted above the chamber. A drain tube is ported through the wall to carry condensation and prevent leaks.

Flush-Mount Design Prevents Dust Accumulation

CleanMount® pass-throughs hug the cleanroom wall, eliminating gaps that collect germs and particle and making them ideal for critical bio/pharmaceutical cleanroom use.

CleanMount® Lipless Chamber Eliminates Clearance Obstructions

Instead of welded seams, the corners of the CleanMount® pass-through interior are coved to eliminate dust and germ traps. The lipless opening presents no clearance obstructions and further simplifies cleaning.

Highest Standards For Electronic Components

Terra’s electronic components are designed and built to the highest standards required by defense and semiconductor industries for long-term reliability and protection against damage, injuries, and electrical hazards.
Available Accessories
Popular Accessories
For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Pass Through Racks

    Designed to be installed into any pass through. Install these racks within minutes with no special tools. Simply tighten a compression screw. Forgot to order racks before? No problem!
  • Video Camera

    Interior HD video camera records continuously or upon door-opening; can also be used for remote monitoring the transfer chamber.
  • Iris Scanner

    Fully automated iris scanner for secure, hands-free access (includes datalogging and optional secondary keycard reader).
  • Intercom System

    Built-in intercom system lets users easily call and communicate between rooms. No more knocking on windows, shouting, or awkward sign language.
  • LCD Message Panel

    Displays critical environmental information related to the interior chamber such as temperature and relative humidity (customizable).
  • Support Brackets for Pass-Through Chambers

    Stainless steel support brackets are recommended for pass-throughs deeper than 24". Brackets fasten to the wall and the body of the chamber rests upon the horizontal bar; no fasteners are used on the pass-through itself.
  • Removable CleanMount Pass-Through Racks and Shelves

    Stainless steel CleanMount racks and shelves can be removed for cleaning and sterilization; won't produce contaminants like chrome-plated steel systems.
  • Electropolish Finish

    Electropolishing increases corrosion resistance and improves ease of cleaning with a smooth, reflective, mirror-like finish.
  • Available UV & LED lights

    Lights are recessed with a transparent lens for easy cleaning; UV-C module neutrailizes microbes using a timed disinfection cycle.
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Manuals & Resources
Manuals & Resources
Blog Post
Cleanroom Passthrough Features Comparison

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