1-1/2″ Half Shell – 58% Open
Half-Shell Pattern Grille
- Critical Environment
- [All Critical Environment]
- Ceiling-Mounted Units
- Mobile Units
- Original Criti-Clean
- SSLORS Lighted Ceiling System
- THD-1.5 Suspended Grid Ceiling System
- Structural OR Ceiling System
- SSEPD – Perimeter Slot Diffuser
- FRD – Flat Radial Pattern Diffuser
- FRD HEPA – Flat Radial Pattern Diffuser with HEPA Filter
- HRDP – Hinged Radial Diffuser
- SS Hemispherical Diffuser
- SSLF – Laminar Flow Diffuser Panel
- SSLF-MC Medium Capacity Laminar Flow Diffuser Panel
- SSLF-HC High Capacity Laminar Flow Diffuser Panel
- SSLFHFD – Laminar Flow HEPA Diffuser
- SSLFHFD-MC Medium Capacity Laminar Flow HEPA Diffuser
- SSLFHFD – Laminar Flow HEPA Filter Diffuser with LED
- HEPA Filters and ULPA Filters
- HRDP – Hinged Radial Diffuser with Filter
- SSLFHFD FFU RF – Fan Powered Laminar Flow HEPA Filter Diffuser – Reverse Flow
- SSLFHFD-T-HC High Capacity Laminar Flow HEPA Diffuser
- SSLF 2 Chamber Laminar Flow Diffuser
- Louvered Face HEPA Diffuser
- Supply Grilles
- [All Supply Grilles]
- 250 Series — Double Deflection Supply Grille
- 250 HD Series — Heavy Duty Double Deflection Supply Grille
- 250 LT Series – Long Throw Double Deflection Supply Grille
- Spiral Duct Diffuser
- 150-LTA Single Deflection Long Throw Supply Grille with Airfoil Blades
- 250 LTA Double Deflection Supply Grille with Airfoil Blades
- 150 Series — Single Deflection Supply Grille
- 150 LT Series — Long Throw Single Deflection Supply Grille
- Return Grilles
- [All Return Grilles]
- 550 Series — 0° or 45°
- 550 HD Series — 0° or 45°
- SSLBG — Linear Light Duty Bar Grille
- SSEC — Egg Crate Grille
- 550 LTA Single Deflection Long Throw Return Grille
- SSPERF-R Perforated Return Air Grille
- SSPERF Core — Perforated Return Air Grille
- SSG — Louvered Return Grille
- SSDL — Deep Louvered Return Grille
- 550 LT Series – 0º or 45º
- Hinged Filter Grilles
- Removable Filter Grilles
- [All Removable Filter Grilles]
- SSFG 550 — Removeable Filter Grille
- SSFG 550 HD — Heavy Duty Removeable Filter Grille
- SSFG 250
- SSFG 150 — Removeable Filter Grille
- SSFG 150LT
- SSFG PERF — Removable Perforated Filter Grille
- SSFG-EC Egg Crate Removable Filter Grille
- SSFG Lattice
- SSFG CLCD
- SSFG-SSG Removeable Filter Grille
- Ceiling Diffusers
- [All Ceiling Diffusers]
- SSCLCD – Concentric Louvered Ceiling Diffuser
- SSPLT-S Lay-In Perforated Supply Diffuser
- SSPLT-R Lay-In Perforated Return Diffuser
- SSMLCD – Modular Louvered Ceiling Diffuser
- SSMCD Modular Single Deflection Ceiling Diffuser
- SSPERF-S Stainless Steel Perforated Supply Grille
- SSCB – Stainless Steel Curved Blade Diffuser
- SSPD – Stainless Square Panel Diffuser
- SFSD – Stamped Face Stainless Diffuser
- SSSLOT Diffuser
- SSPLT-R CB
- SSPLT-AF Air Foil Perforated Supply
- Bar Grilles
- Dampers
- Drum Louvers
- Air Extractors
- Accessories
- Architectural Grilles
- Security Products
- [All Security Products]
- SEC-3 Maximum Security Grille – Supply or Return
- SEC-6 Maximum Security Grille – Supply or Return
- SEC-7 Wire Mesh Face Security Return Grille
- SEC-8 Stamped Lattice Face Security Grille with Sleeve
- SEC-10 Wire Screen Face Supply Grille
- SEC-11 Rectangular Hole Lattice Face Security Grille
- SD Lattice Face Security Ceiling Diffuser
- SEC-BG Security Barriers
- SEC-4
- SEC-9
- Risk-Resistant Security
- Door Grilles
- Aluminum Products
- Item Archives