I have the armstrong 584a humiguard plus and they are 3/4" thick. these one are 5/8" thick are these the right ones? and if they're not is there free

Dennis, The panels you referred to are different than the existing 584A, the current item is 584B, it is a different panel than 1774, indicated by the item number.

I would like to try to order the right ones. the 584 B does not show that what is the item number that I need?

It's likely listed as 584, suffixes are not usually listed on the site.

How can I find out what style tile we have at our Animal Hospital?

Look on the backside of the tile, the sku or style no. usually is located there.

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Armstrong 2x2 White Ceiling Tiles; 16 pcs; Acoustic; Suspended Ceiling Grid; Dune 1774

Armstrong 2x2 White Ceiling Tiles; 16 pcs; Acoustic; Suspended Ceiling Grid; Dune 1774

Product ID: 115644599

Details

Brand
Armstrong
Color
White
Finish Type
Painted
Installation Type
Lay-In
Item Weight
54 Pounds
Material
Mineral Fiber

💧Mold & mildew resistant

🔇Acoustic noise reduction

🔥ASTM E84 Class A fire resistance

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€ 798.08

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Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔇 Elevate your space with silent sophistication—because your ceiling should work as hard as you do.

HUMIDITY HERO - HumiGuard Plus technology resists sagging, mold, and mildew in high-humidity environments
VERSATILE STYLE - Clean white DUNE finish fits seamlessly in offices, basements, retail, and utility rooms
FIRE SAFE DESIGN - ASTM E84 Class A rating ensures top-tier fire resistance
QUIET CONFIDENCE - Minimizes noise transfer for focused, distraction-free spaces
EFFORTLESS UPGRADE - Easy drop-in installation with standard 15/16" ceiling grid—no tools or adhesives needed

Armstrong 2x2 White Ceiling Tiles (16 pcs) combine superior acoustic performance with ASTM E84 Class A fire resistance and advanced moisture protection. Designed for easy drop-in installation on standard ceiling grids, these durable mineral fiber tiles resist sagging, mold, and mildew, making them ideal for commercial and residential spaces exposed to humidity. The clean white DUNE style enhances any room from offices to basements, delivering practical noise control and a polished look.

Specifications

ASIN	B07LFGDZXJ
Additional Features	Worry-free Packaging
Best Sellers Rank	#16,675 in Musical Instruments ( See Top 100 in Musical Instruments ) #369 in Recording Studio Acoustical Treatments
Brand Name	Armstrong
Color	White
Coverage	Storage Rooms, Discount Stores, Utility Rooms, Basements, High Humidity Areas
Customer Reviews	4.2 4.2 out of 5 stars (82)
Edge Type	Tegular
Finish Types	Painted
Form Factor	square tiles with tegular edge
Installation Method	Lay-In
Item Dimensions L x W	24"L x 24"W
Item Thickness	0.63 Inches
Item Weight	54 Pounds
Manufacturer	Armstrong
Manufacturer Part Number	1774A
Material Type	Mineral Fiber
Model Number	1774, 1774A
Pattern	Solid
Shape	Square
Size	24"W x 24"W x 5/8"T
Style Name	DUNE
UPC	888264406451
Unit Count	16.0 Count
Water Resistance Level	Water Resistant

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