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PriceShips in Stocked
304 Stainless Steel 24" 18" 18" Flush Wall Yes $9,3901-3 Days Stocked
304 Stainless Steel 24" 24" 24" Flush Wall Yes $13,0051-3 Days Stocked
304 Stainless Steel 24" 24" 48" Flush Wall Yes $16,06315-25 Days
304 Stainless Steel 36" 36" 36" Flush Wall Yes $19,08715-25 Days
304 Stainless Steel 36" 36" 48" Flush Wall Yes $20,46515-25 Days
304 Stainless Steel 12" 12" 12" Flush Wall $4,7941-3 Days Stocked
304 Stainless Steel 18" 18" 24" Flush Wall $5,9951-3 Days Stocked
304 Stainless Steel 24" 24" 24" Flush Wall $7,1411-3 Days Stocked
304 Stainless Steel 24" 24" 48" Flush Wall $8,28615-25 Days
304 Stainless Steel 36" 36" 36" Flush Wall $9,46915-25 Days
304 Stainless Steel 36" 36" 48" Flush Wall $10,61515-25 Days
Chamber Width
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Product Details

• Designed for installation in a fire-rated cleanroom or laboratory wall

• Features rounded corners with no cracks; ideal for strict sterilizing protocol

• Allows transfer of materials into and out of the controlled environment

• Fire-rated door carries the UL-B label for 90-minute fire exposure (suitable for 2-hour wall rating)

• Fire-rated door does not include a window

• Opposite-side door has a standard LiftLatch and static-dissipative PVC window

• 304 stainless steel chamber provides durable, chemical-resistant surfaces for easy cleaning

• Automatic interlock mechanism offers high reliability with no maintenance and minimizes contamination exposure while materials are transferred to and from cleanroom

Mechanical Pass Through Chambers

  • Fire-Rated Pass-Through Door with No Window Fire-Rated Pass-Through Door
  • Pass-Through; EP 304 SS, CleanSeam, 18 Fire-Rated Pass-Through Chamber, 18"W x 20.5"D x 24"H
Fire-Rated Pass-Through Door with No Window
Pass-Through; EP 304 SS, CleanSeam, 18

Features & Benefits

Features and Benefits

Critical Dimensions

Fire-Rated Pass-Through Chambers Without Windows

Chambers Tailored to Your Requirements 

Modifications are no problem, as long as you keep these points in mind to retain the UL-B fire-rating:

  • Door thickness cannot be modified
  • Window dimensions cannot be modified
  • Pass-through chamber width and height dimensions other than what is shown in the ordering chart are possible, but are restricted to the outside dimensional (OD) range between 24"W x 18"H and 36"W x 48"H

Discuss your specific needs with a Terra Product Specialist.

Fire-Rated Pass-Through Installation

Fire-rated doors are designed to be mounted flush with the wall, with the body of the pass-through extending into the unclassified room (see illustration).

Access Clearances 
  • Width = (Nominal Chamber Width) – 1.88"
  • Depth = (Nominal Chamber Depth) – 0.12"
  • Height = (Nominal Chamber Height) – 1.25"
  • Wall Cut-Out = Add 0.5" to chamber width and add 0.5" to chamber height
Pass-Through Support Brackets

Terra offers support brackets and hardware to ensure secure mounting (order separately). In most cases, a bracket kit provides ample support. Select support brackets for 36"D (914 mm) wall-mount models to brace the larger chamber. Two brackets are recommended for wide chambers (installed side-by-side on the wall).

Fire-Rated Pass-Through Glass Window

The wire-free glass-ceramic incorporate a surface-applied, fire-rated film and is impact rated for additional safety. These windows feature a high level of clarity and offer protection from either side.

Spring-Loaded Fire-Rated Passthrough Hinge

Spring-loaded hinges provide the self-closing capability required in a fire-rated wall. Automatic closing doors also simplify operation for operators with hands full.

Insulated Fire-Rated Pass-Through Door

Terra’s fire-rated door meets UL 10B requirements for 90-minute fire exposure, including hose-stream testing. The inside of the door is lined with 2”-thick SuperWool® Plus insulation to reduce heat transfer from elevated room temperatures.

Recessed Pass-Through Paddle Latch

The recessed paddle latch withstands up to 50 lbs. of force and can be easily operated with gloved hands. The positive latch mechanism ensures that the door always latches and remains secure.

Available Accessories

Popular Accessories

For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Passthrough Chamber Door Stop
    This stainless steel door stop limits the arc of the pass-through door's swing to 90°, preventing damage to wall, door latch and other components. Door stops can be adjusted to allow other angles.
  • Support Brackets for Pass-Through Chambers
    Stainless steel support brackets are recommended for pass-throughs deeper than 36". 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.
  • Electropolish Finish
    Electropolishing increases corrosion resistance, improves ease of cleaning, and provides a smooth and bright finish.

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Manuals & Resources

On a tight schedule? Choose FasTrak 24/7 Priority Service to help meet your critical schedule for Terra-manufactured products, either before or after your order is placed.*

  • FasTrak 24/7 provides a 24/7 commitment to meet the shipping date YOU specify, regardless of quoted lead times.
  • FasTrak 24/7 assigns a dedicated production team plus a dedicated senior expeditor working three shifts to meet your delivery specification.
  • FasTrak 24/7 guarantees* to meet the agreed-to specified ship date.

Call for pricing. FasTrak service fees cover costs of additional services only, without additional profit.

 * Terra's FasTrak services limited guarantee: to ship on the ESD or date specified OR to refund up to 100% of FasTrak charges. This guarantee covers no direct, special, consequential or other damages and is strictly limited to up to 100% of the amount paid for FasTrak service. When a specified ship date is missed due to factors outside Terra's control (vendor performance, deliveries by shipping companies, etc.) and random factors such as accidents, the credit of up to 100% of the FasTrak 24/7 may not apply. FasTrak service requested after order placement will be quoted and accepted based on available time remaining before required ship date.

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