✔ Large test area (830 x 320 mm) for fast leak testing
✔ Transparent design for a clear view of the weld seam
✔ Integrated pressure gauge (bar/PSI) for precise pressure monitoring
✔ Rugged, impact-resistant plastic for use on construction sites
✔ Easy to use with thumb-operated venting

Efficient leak testing of large weld seams

The LEISTER VACUUM BOX 830x320 mm is a professional testing device for roofers and specialist construction, specifically fast and reliable leak testing of plastic weld seams was developed.

Whether on a flat roof, patio, or geomembrane, this vacuum box lets you spot leaks immediately and prevent costly consequential damage.

Use in everyday professional work

Specialized applications: testing, monitoring, ensuring quality

The VACUUM BOX is placed directly on the weld seam and connected to an external VACUUM PUMP a vacuum is created. Thanks to the transparent design, you can keep the test area in view at all times and spot leaks immediately.

👉 Ideal for large-area inspections with maximum efficiency.

Typical applications

• Flat roof waterproofing: Inspection of plastic membranes
• Geomembrane installation: Waterproofing system inspection
• Patios & structures: Ensuring leak-tight weld seams
• Industry & specialist construction: Leak testing over large areas

Technical details

• Model: VACUUM BOX
• Size: 830 x 320 mm
• Testing surface: approx. 810 x 310 mm
• Material: Impact-resistant, transparent plastic
• Pressure gauge: Integrated bar/PSI scale
• Use: Thumb-operated vent
• Operation: With external VACUUM PUMP (please order separately!)

Your benefits at a glance

Efficient large-area testing:
The large testing surface lets you inspect long weld seams in a single operation – saving time and boosting productivity.

Maximum control
 The integrated pressure gauge lets you monitor the vacuum at all times – for precise and reliable results with roofing supplies.

Robust and durable,
High-quality materials and durable seals ensure a long service life on the job site.

Simple and intuitive
Ergonomic operation and fast venting make it especially convenient to use.

Why you need this tool in your daily work

The LEISTER VACUUM BOX 830x320 mm is the ideal solution for anyone who wants to quickly, safely, and professionally inspect large weld seams want. They improve the quality of your work and help prevent leaks in the long term.

An indispensable roofing tool – for professionals who value efficiency, precision, and safety.

👉Now at Roofify perform and carry out leak tests at a professional level.