National Guard Products L-700-RX Steel Door Louver | No-Vision High Airflow Vent

The National Guard Products L-700-RX Steel Door Louver is a heavy-duty architectural ventilation solution designed for high-traffic commercial and industrial environments. Featuring a specialized inverted "V" blade design, this no-vision door louver provides an impressive 70% free area for maximum airflow while maintaining total visual privacy. It is the premier solution for door restoration in facilities requiring superior HVAC efficiency and a durable, tamper-resistant finish.

Constructed from 18-gauge cold rolled steel, the L-700-RX is a critical solution for door security and structural integrity. The frame features mitered and welded corners with additional welded reinforcing clips, ensuring the unit remains rigid and rattle-free under heavy use. This louver is an essential component for any solution for door surface repair, as the self-attaching frame effectively clamps onto the door, concealing rough cutout edges and providing a clean, factory-standard look for 1-3/4" thick doors.

Key Features & Performance

• High-Efficiency Airflow: Delivers a 70% free area, significantly higher than standard louvers, making it an ideal solution for door restoration in mechanical rooms and corridors.
• No-Vision Privacy Protection: The 24-gauge steel blades feature an inverted "V" design with hemmed edges to block direct lines of sight while ensuring safety and strength.
  
• Self-Attaching Frame: The interior-side countersunk mounting holes allow for a secure, flush-mount installation that acts as a permanent solution for commercial door security.
  
• Rugged Steel Construction: The 18-gauge frame and reinforced corners provide a robust solution for door edge reinforcement against impacts and environmental wear.
  
• Industrial Powder Coat Finishes: Available in Gray Primer (GPZ), Dark Bronze (DKB), Tan, and Beige Primer (BPR) to perfectly match existing facility hardware.
  

Technical Details & Specifications

• Brand: National Guard Products (NGP)
• Model Number: L-700-RX
• Frame Material: 18-Gauge Cold Rolled Steel
  
• Blade Material: 24-Gauge Steel with Hemmed Edges
  
• Free Area: 70%
• Standard Thickness: Designed for 1-3/4" thick doors
• Sizing Note: Order size is the cutout size. The unit is manufactured 1/4" undersized to ensure proper clearance during installation.
• Installation Hardware: Includes #8 x 3/4" Phillips head SMS. For high-security or industrial applications, mounting the unit with thru bolts can provide an additional layer of tamper-resistance.
  

Why Choose the NGP L-700-RX?

The National Guard Products L-700-RX is the professional’s choice for balancing privacy with high-volume ventilation. Unlike lighter aluminum models, the welded steel construction of the L-700-RX provides the industrial-grade durability required for schools, hospitals, and manufacturing plants. It offers a permanent and cost-effective solution for door restoration, delivering the structural reliability and polished, professional appearance expected from NGP architectural products.