Return Heavy Duty Grilles - Steel Gym Grille Series: 4500 The series 4500 is a heavy duty steel return grille. This unit is designed for applications such as gymnasiums and public areas. The border and deflection blades are heavy gauge steel and built to withstand moderate physical abuse. Model 4538 is available with 38 degree deflection blades, and all series models are available with the optional opposed blade dampers.	Side Supply Grilles - Vertical Blades Series: V The V series of aluminum grilles combines the economical advantages of corrosion resistant construction and durability with attractive design, solid performance, and competitive pricing. Models spread across the V series include: V(Single deflection/vertical blades), VH(Double deflection/vertical blades), and the VM(Model V with a built in multishutter damper).
Supply Grilles - Spiral Pipe Grille Series: 4004P The models 4004P(aluminum) and 4004SP (galvanized steel) offers superior performance in exposed duct applications offering a clean, low profile appearance.	Supply Curved Blade Ceiling Grilles Series: L The L series adjustable aluminum curved blade grilles and registers are an economic solution to applications requiring ceiling or sidewall installations with direction air patterns. Available with a wide range of air pattern configurations; blade lengths, single and double deflection models, and optional multi-shutter dampers are also available.
Sidewall Return Grilles - Steel Series: SRH The Series SRH Steel return grilles is an economical choice for exhaust/return applications, available with several border configurations to integrate into a wide range of ceiling systems. Aluminum(RH) and and extruded aluminum(RHE) models are also available in the RH series.	Heavy Duty Grilles - Sidewall Return Series: HDRH Extruded aluminim heavy duty return grilles are an excellent choice for projects that require a grille or register to withstand moderate physical abuse. Applications include common areas in schools, hospitals, and other high traffic areas; and can be ordered with optional opposed blade dampers.
Sidewall Supply Grilles Series: 4000 Series 4000 sets the standards for performance and appearance in the industry. Series 4000(V-vertical blades and H-Horizontal blades) are all aluminum; and the 4000S models have a steel border and steel deflection blades, stainless steel(304/316) construction is also available in ther 4000SS models. Single deflection is offered in the V4002/H4002 models, Double deflection is offered in the V4004/H4004 models, and a built-in multi-shutter damper is offered in the 'M' models.	Sidewall Supply - Adj. Extruded Alum. Air Foil Blades Series: 4000-AF The series 4000-AF is our premier product; offering superior performance, appearance, and construction with an extruded aluminum border and air foil deflection blades. The 4000S-AF series has a steel border and extruded aluminum air foil deflection blades; and models are offered in single(4002-AF) and double(4004-AF) deflections.
Sidewall Return Grille - Aluminum Series: RH RH series of return grilles combine the advantages of corrosion resistant construction and durability with attractive design, solid performance, and competitive pricing. Aluminum construction; with steel(SRH), extruded aluminum(RHE), and stainless steel(RHSS) models available.	Sidewall Return Grille - Extruded Aluminum Series: RHE Extruded aluminum sidewall return grille. The series RHE is our premier extruded aluminum product, offering superior construction for high performance and durability.
Return Grilles and Registers - Fixed Blades Series: 4200R The series 4002R return grilles and registers are designed to match the 4000 series supply models. These units are constructed of heavy aluminum. The 4002RS is constructed with a heavy steel border and steel deflector blades.	Door Grilles - Exhaust and Return Series: DG Series DG extruded aluminum door grilles are designed to transfer air through doors or walls. The DG series include “V” shaped louvers providing a sight-proof return or exhaust grille regardless of the viewing angle. Models available for the core only(DGCO), Single Flange Frame(DGSF), and Double Flange Frame(DGDF, DGLP).
Sidewall/Ceiling Return - Cubed Core Series: CC The series CC aluminum cubed core return and exhaust grilles are designed to provide low pressure drops and low sound levels. Models CC5, CC1, and CC15 are available for different core configurations and border styles. The CC5 is also available in stainless steel construction(model CC5SS).	Sidewall Ceiling Return Grille - Perforated Face Series: RP The series RP aluminum perforated face return or exhaust grilles are designed to blend into the ceiling system and provide a clean, uncluttered architectural appearance. Ideal for return/exhaust applications that require low pressure drops and low sound. Available with an optional opposed blade damper.
Filter Return Grilles Series: RHF Premiere aluminum, steel(SRHF), and extruded aluminum(RHEF) model filter grilles offer superior appearance and performance. RHF series combines the advantages of corrosion resistant construction and durability with attractive design, solid performance, and competitive pricing. Available in Grille Size(G/S: -1/4") and Filter Size(F/S: +3/8") for custom filter applications.	Filter Return Grilles - Cubed Core Series: CC5F The series CC5F aluminum cubed core return and exhaust filter grilles are designed to provide low pressure drops and low sound levels; and are designed for 1 inch filters, including a hinged face for quick filter changes. Available in Grille Size(G/S: -1/4") and Filter Size(F/S: +3/8") for custom filter applications.
Filter Return Grilles - Round Perforated Series: RPF RPF aluminum perforated face return or exhaust filter grilles are designed to blend into the ceiling system and provide a clean, uncluttered architectural appearance. Ideal for lower pressure drop and low sound applications. Available wirth an optional opposed blade damper.	Removable Core Grilles and Registers - Revers-A-Core Series: RC Extruded aluminum Revers-A-Core supply grilles and registers combine rugged aluminum construction, a clean architectural design, and an extremely flexible air pattern versatility. Available in single and double deflections, flat and curved borders, removable inner frame styles, and optional opposed blade dampers.
UltraAire High-End Extruded Aluminum and Straight Blade Grilles Series: UltraAire UltraAire high-end extruded aluminum curved(UAC) and straight(UAS) blade grilles and registers offer a superior appearance while providing unmatched performance in luxury applications. Built-in multi-louvered damper with low profile damper operator provides smooth transition from open to close, standard on all UltraAire models.	Aluminum 1-way and 2-way Vertical Curved Blade Grille Series: S Aluminum 1-way and 2-way vertical curved blade grilles available in single and double deflections.