STI 1331 Universal Stopper 37mm Spacer, Convert Flush Mount to Surface Mount, Clear

Easily convert flush-mounted fire and security devices into dependable surface-mount installations with the Safety Technology International STI 1331 Universal Stopper 37mm spacer. Ideal for retrofits and new builds, this clear polycarbonate (PC) spacer adds 1.5 inch (37 mm) depth to accommodate wiring, conduit, and device clearance while retaining a low-profile, professional appearance for surveillance, monitoring, and fire alarm equipment. Built for both indoor and outdoor use, the transparent spacer preserves sightlines for cameras and detectors and resists weather and UV deterioration for long-term reliability. The STI-1331 ships complete with gaskets and hardware so installers can maintain a sealed, code-compliant enclosure without extra parts or delays. Compatible with Universal Stopper covers, it streamlines upgrades across a range of mounting scenarios, reducing downtime and installation complexity. For integrators specifying durable, discreet mounting solutions for security, surveillance, and fire systems, the STI 1331 spacer is a practical, cost-effective choice. Add the STI-1331 to your next project to simplify surface-mount conversions and ensure a neat, weatherproof installation.

• Quickly converts flush-mounted devices to surface-mount installations for faster retrofits and reduced labor
• Clear polycarbonate construction keeps installations discreet while resisting outdoor weather and UV exposure
• 37 mm (1.5 in) spacer height provides extra room for wiring, conduit entry, and device clearance
• Includes spacer, gaskets, and mounting hardware for a complete, weather-resistant assembly out of the box
• Designed for compatibility with Universal Stopper covers to simplify installation across fire, security, and monitoring equipment