45mm Push Fit Vent - Fine Mesh

45mm Push Fit Vent – Fine Mesh is a clean, practical ventilation insert for plastic isopod tubs, millipede enclosures, terrariums and other bioactive setups. The 3D-printed push-fit body is designed to fit a 45mm hole, while the fine metal mesh provides controlled airflow with more screening than a coarse-mesh vent.

Key features

• Fits a 45mm tub hole – designed for a neat push-fit installation in plastic enclosure walls or lids.
• Fine metal mesh – gives a finer barrier while still allowing useful air exchange.
• 3D-printed push-fit body – tidy, simple installation without an oversized external grille.
• For bioactive enclosures – suitable for isopod tubs, millipede tubs, terrariums and similar invertebrate setups.
• Helps manage condensation and stale air – useful when you want to increase ventilation without leaving a large open hole.

Fine mesh or coarse mesh?

Choose the fine mesh version when you want more screening and a more restricted airflow path. Choose the 45mm Coarse Mesh Push Fit Vent when maximum airflow is the priority. The best choice depends on the livestock, enclosure size, room conditions and how quickly your substrate dries.

How to install a 45mm push fit vent

1. Mark the vent position on the enclosure wall or lid.
2. Cut a clean 45mm hole. A 45mm hole saw is the easiest way to get a consistent opening.
3. Remove any burrs or loose plastic around the edge.
4. Press the vent firmly into the hole until the body is seated securely.

Ventilation for isopod and bioactive tubs

Good enclosure ventilation is about balance. Too little airflow can encourage persistent condensation, stale air and overly wet substrate, while too much ventilation can dry the enclosure too quickly. These 45mm push-fit vents let you add deliberate ventilation points while still maintaining a damp refuge elsewhere in the tub.

For larger tubs, vents can be positioned on opposing sides to encourage gentle cross-ventilation. Always monitor the enclosure after changing ventilation and adjust watering or vent quantity if the substrate begins to dry faster than expected.

What you receive

3D-printed 45mm push-fit vent bodies fitted with fine metal mesh. Select the quantity required above.

Browse more isopod enclosure supplies for substrates, leaf litter, hides and other bioactive setup essentials.