This 3D printed replacement/upgrade lid is designed to fit the Exo Terra X-Small Pro Terrariums line of front-opening terrariums in sizes 12"x12"x12", 12"x12"x18", and 12"x12"x24" (models PT4400, PT4401 and PT4402). The 24" one is a paludarium. It is not compatible with other brands or models. These don't fit the previous Exo Terra series. See our ET line if you need a lid for the Natural series of tanks.
🪴 Terrarium not included.
🧩 Design & Construction
This lid is printed in a single solid piece and comes preassembled for convenience.
It includes:
The EP design provides a sleek, all-in-one lid solution, combining function, fit, and simplicity.
⚙️ Functional Features
Each lid includes three pre-threaded holes:
One in the front center
Two in the back corners
Each hole includes a flush screw-in plug for a clean look and easy customization.
You can configure these openings with optional accessories available in our shop:
Feeder caps – allow feeding or watering without opening the doors
Misting nozzle adapters – fit standard-sized 5/8" misting nozzles (adapter reduces hole size from ~1" to standard)
Cord pass-through caps – for neatly routing cables or tubing
Solid vent insert kit – includes plastic strips that install under the lid, over the mesh, and are held in place by clips to block airflow when higher humidity is needed
All optional parts can be swapped easily, or you can simply keep the holes capped.
🕸️ Ventilation
The built-in fine 3D-printed mesh provides excellent airflow and safety:
Optional solid vent inserts let you block airflow while keeping the mesh intact — ideal for maintaining high humidity environments.
🧰 Compatibility
Designed exclusively for Exo Terra Pro X-Small terrariums (12"x12") — models 12", 18", and 24" tall. Requires tanks with the latches inside the tank (not the half circle kind on top).
⚠️ Older Exo Terra models with different latch systems will not fit (see our ET series for those).
Not compatible with other brands or unlisted models.
🧡 Customization & Bulk Orders
If you need a custom version or a bulk order, please contact us directly! We can often make small adjustments for free, or for a small fee if additional design time is required.
🐾 Trusted Quality
Printed in one solid piece — no assembly required
Includes preinstalled 8"x10" acrylic sheet
Built-in fine mesh front and back
Three capped multi-use holes for misting, feeding, or cords
Optional solid vent insert kit to block airflow for high humidity
Safe, rust-free, and fruit-fly proof
Compatible only with Exo Terra Pro X-Small terrariums (12"x12")
🕷️ Tom’s Big Spiders uses and loves our lids!
This 3D printed replacement/upgrade lid is designed to fit the Exo Terra X-Small Pro Terrariums line of front-opening terrariums in sizes 12"x12"x12", 12"x12"x18", and 12"x12"x24" (models PT4400, PT4401 and PT4402). The 24" one is a paludarium. It is not compatible with other brands or models. These don't fit the previous Exo Terra series. See our ET line if you need a lid for the Natural series of tanks.
🪴 Terrarium not included.
🧩 Design & Construction
This lid is printed in a single solid piece and comes preassembled for convenience.
It includes:
The EP design provides a sleek, all-in-one lid solution, combining function, fit, and simplicity.
⚙️ Functional Features
Each lid includes three pre-threaded holes:
One in the front center
Two in the back corners
Each hole includes a flush screw-in plug for a clean look and easy customization.
You can configure these openings with optional accessories available in our shop:
Feeder caps – allow feeding or watering without opening the doors
Misting nozzle adapters – fit standard-sized 5/8" misting nozzles (adapter reduces hole size from ~1" to standard)
Cord pass-through caps – for neatly routing cables or tubing
Solid vent insert kit – includes plastic strips that install under the lid, over the mesh, and are held in place by clips to block airflow when higher humidity is needed
All optional parts can be swapped easily, or you can simply keep the holes capped.
🕸️ Ventilation
The built-in fine 3D-printed mesh provides excellent airflow and safety:
Optional solid vent inserts let you block airflow while keeping the mesh intact — ideal for maintaining high humidity environments.
🧰 Compatibility
Designed exclusively for Exo Terra Pro X-Small terrariums (12"x12") — models 12", 18", and 24" tall. Requires tanks with the latches inside the tank (not the half circle kind on top).
⚠️ Older Exo Terra models with different latch systems will not fit (see our ET series for those).
Not compatible with other brands or unlisted models.
🧡 Customization & Bulk Orders
If you need a custom version or a bulk order, please contact us directly! We can often make small adjustments for free, or for a small fee if additional design time is required.
🐾 Trusted Quality
Printed in one solid piece — no assembly required
Includes preinstalled 8"x10" acrylic sheet
Built-in fine mesh front and back
Three capped multi-use holes for misting, feeding, or cords
Optional solid vent insert kit to block airflow for high humidity
Safe, rust-free, and fruit-fly proof
Compatible only with Exo Terra Pro X-Small terrariums (12"x12")
🕷️ Tom’s Big Spiders uses and loves our lids!
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