Suttle, SAE-21, 21" SOHO ACCESS ENCLOSURE (NO COVER) Available in 14”, 21”, 28”, and 42” heights these feature-rich, ruggedized enclosures are designed to be either flush mounted between sixteen inch centered studs or surface mounted via recessed mounting holes. The SOHO Access Enclosures also offer numerous cable entry knock-outs, a vertical and horizontal mounting hole pattern, and multiple cable tie attachment points offering better, cleaner cable management. All of our enclosures are UL listed for security alarm and fire signalling applications. Both door covers provide a knock-out for a security lock