Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
ARMSTRONG Cirrus 24x24 Angled Tegular Ceiling Tile 578B - General Purpose Tiles
ARMSTRONGGeneral Purpose Tiles

ARMSTRONG Cirrus 24x24 Angled Tegular Ceiling Tile 578B

<p>The ARMSTRONG Cirrus 24x24 Angled Tegular Ceiling Tile (578B) is a high-performance general purpose tile designed for libraries and other demanding environments. Each pack contains 12 tiles, sized 24x24 inches…

SKU 3G-OTH-571319

Also listed as: 578 B · 578-B

Brand
ARMSTRONG
Item
Cirrus 24x24 Angled Tegular Ceiling Tile 578B
Part Number
578B
Category
General Purpose Tiles
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

ARMSTRONG
Manufacturer Part Number
578B
Series
Cirrus
Type
Cirrus, 24 in x 24 in, Angled Tegular, 12 PK
Material
Mineral Fiber
Color
White
Edge Type
Angled Tegular
Grid Size
15/16 in
Application
Libraries
Display Sell UOM
PK
Resistance Properties
Mildew Resistant
Recycled Content Range
High Recycled Content (50% or More)
Light Reflectance Range
High Light Reflectance (83% or More)

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

ARMSTRONG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

<p>The ARMSTRONG Cirrus 24x24 Angled Tegular Ceiling Tile (578B) is a high-performance general purpose tile designed for libraries and other demanding environments. Each pack contains 12 tiles, sized 24x24 inches with an angled tegular edge for a clean, modern look on 15/16-inch grids. Made from mineral fiber, these tiles offer high light reflectance (83% or more) to brighten spaces, and are mildew resistant for durability in humid climates. They also feature high recycled content (50% or more), supporting sustainability goals.</p><p>As a Singapore-based supplier, 3G Electric provides competitive SGD quotes on request, handles GST for local buyers, and ensures fast delivery across Singapore and Southeast Asia. Worldwide shipping is also available.</p>

Frequently Asked Questions

What are the key specifications of the ARMSTRONG Cirrus 578B tile?

The tile is 24x24 inches, angled tegular edge, fits 15/16-inch grid, made of mineral fiber, white, with high light reflectance (≥83%) and mildew resistance. It comes in packs of 12.

Can I get a quote in SGD and fast delivery in Singapore?

Yes, 3G Electric offers SGD quotes on request, handles GST for Singapore buyers, and provides fast delivery across Singapore and Southeast Asia.

Used in

Common applications for ARMSTRONG
Hydronic heating systems — ARMSTRONG general-purpose inline circulator pump 182202-657 for potable water circulation
Pump motor replacement — ARMSTRONG pump motor 817025-007 for S&H 4-Series circulator pumps
Flange installation on E32.2HT pumps — ARMSTRONG flange hardware kit 810120-353K with steel bolts and rubber gaskets
Bearing replacement in H-32 series pumps — ARMSTRONG bearing assembly 816549MF-091 for in-line circulating pumps
Piping system connections — ARMSTRONG standard flanges 806074-621k for H-6 6 model with stainless steel and EPDM
Retrofit of pump flanges — ARMSTRONG flange 561100LF-001 for ASTRO EXPRESS 2 SYSTEM union-type connections
Not sure this is the right part? Photo-identify it

ARMSTRONG Products

3G Electric supplies ARMSTRONG general purpose tiles. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Mineral fiber ceiling tile from the Cirrus series, 24 in x 24 in with a square tegular edge for 9/16 in grid systems. White finish, mold resistant, high light reflectance (83% or more), and high recycled content (50% or more). Suitable for library and other indoor applications requiring acoustic control and clean air
ARMSTRONG
Mineral fiber ceiling tile from the Cirrus series, 24 in x 24 in with a square tegular edge for 9/16 in grid systems. White finish, mold resistant, high light reflectance (83% or more), and high recycled content (50% or more). Suitable for library and other indoor applications requiring acoustic control and clean air
Mineral fiber ceiling tile in white, 24 x 24 inches, square tegular edge for 15/16 in grid systems. High light reflectance (83% or more) and soil resistant. Suitable for music rooms and other commercial spaces requiring acoustic control
ARMSTRONG
Mineral fiber ceiling tile in white, 24 x 24 inches, square tegular edge for 15/16 in grid systems. High light reflectance (83% or more) and soil resistant. Suitable for music rooms and other commercial spaces requiring acoustic control
Mineral fiber ceiling tile, white, 24 in x 48 in, beveled tegular edge for 9/16 in grid. Sold in packs of 6. Mold resistant with high light reflectance (83% or more) and high recycled content (50% or more). Suitable for music rooms and other acoustically sensitive environments
ARMSTRONG
Mineral fiber ceiling tile, white, 24 in x 48 in, beveled tegular edge for 9/16 in grid. Sold in packs of 6. Mold resistant with high light reflectance (83% or more) and high recycled content (50% or more). Suitable for music rooms and other acoustically sensitive environments
Mineral fiber ceiling tile from the Cirrus series, 24 in x 24 in with an angled tegular edge for 15/16 in grid systems. White finish, mildew resistant, high light reflectance (83% or more), and high recycled content (50% or more). Sold in packs of 12. Suitable for music rooms and other spaces requiring acoustic privacy
ARMSTRONG
Mineral fiber ceiling tile from the Cirrus series, 24 in x 24 in with an angled tegular edge for 15/16 in grid systems. White finish, mildew resistant, high light reflectance (83% or more), and high recycled content (50% or more). Sold in packs of 12. Suitable for music rooms and other spaces requiring acoustic privacy

More from ARMSTRONG

View all ARMSTRONG parts
General-purpose mineral fiber ceiling tile from the Calla series. Square tegular edge for 15/16 in grid. White finish, mold resistant, high light reflectance (83% or more), high recycled content (50% or more). Suitable for library music applications
ARMSTRONG
General-purpose mineral fiber ceiling tile from the Calla series. Square tegular edge for 15/16 in grid. White finish, mold resistant, high light reflectance (83% or more), high recycled content (50% or more). Suitable for library music applications
General-purpose ceiling tile made of mineral fiber with a fissured texture and white finish. Measures 24 in x 48 in with square lay-in edges for 15/16 in grid systems. Sag resistant with standard light reflectance. Suitable for commercial interiors such as offices, retail spaces, and corridors
ARMSTRONG
General-purpose ceiling tile made of mineral fiber with a fissured texture and white finish. Measures 24 in x 48 in with square lay-in edges for 15/16 in grid systems. Sag resistant with standard light reflectance. Suitable for commercial interiors such as offices, retail spaces, and corridors
Fiberglass ceiling tile, 24 in x 24 in, square lay-in edge for 15/16 in grid systems. White finish with high light reflectance (83% or more) and sag resistance. Contains 50% or more recycled content. Sold in packs of 24. Suitable for suspended ceilings in libraries and other quiet commercial spaces
ARMSTRONG
Fiberglass ceiling tile, 24 in x 24 in, square lay-in edge for 15/16 in grid systems. White finish with high light reflectance (83% or more) and sag resistance. Contains 50% or more recycled content. Sold in packs of 24. Suitable for suspended ceilings in libraries and other quiet commercial spaces
General-purpose mineral fiber ceiling tile from the Fine Fissured series, sized 24 in x 24 in with an Angled Tegular edge. Provides a Noise Reduction Coefficient (NRC) of 0.55 and Ceiling Attenuation Class (CAC) of 35. Fire resistive with high recycled content and high light reflectance. Suitable for library applications
ARMSTRONG
General-purpose mineral fiber ceiling tile from the Fine Fissured series, sized 24 in x 24 in with an Angled Tegular edge. Provides a Noise Reduction Coefficient (NRC) of 0.55 and Ceiling Attenuation Class (CAC) of 35. Fire resistive with high recycled content and high light reflectance. Suitable for library applications
General-purpose ceiling tile made of mineral fiber with a fissured texture and white finish. Designed for 15/16 in grid systems with square lay-in edge type. Sag resistant, with standard recycled content and standard light reflectance. Suitable for commercial indoor applications such as offices and retail spaces
ARMSTRONG
General-purpose ceiling tile made of mineral fiber with a fissured texture and white finish. Designed for 15/16 in grid systems with square lay-in edge type. Sag resistant, with standard recycled content and standard light reflectance. Suitable for commercial indoor applications such as offices and retail spaces
Mineral fiber ceiling tile from the Mesa series, sized 24 in x 48 in with an Angled Tegular edge for a 15/16 in grid. Provides a Noise Reduction Coefficient of 0.6, high light reflectance of 83% or more, and mold resistance. Suitable for general-purpose spaces and music rooms requiring acoustic control. Sold in packs of 8
ARMSTRONG
Mineral fiber ceiling tile from the Mesa series, sized 24 in x 48 in with an Angled Tegular edge for a 15/16 in grid. Provides a Noise Reduction Coefficient of 0.6, high light reflectance of 83% or more, and mold resistance. Suitable for general-purpose spaces and music rooms requiring acoustic control. Sold in packs of 8
Fiberglass ceiling tile from the Optima series, white finish, 24 in x 72 in, Square Tegular edge for 9/16 in grid, sold in a 6-pack. Mold resistant with high light reflectance (83% or more) and high recycled content (50% or more). Suitable for library applications where controlled acoustics and improved illumination are desired
ARMSTRONG
Fiberglass ceiling tile from the Optima series, white finish, 24 in x 72 in, Square Tegular edge for 9/16 in grid, sold in a 6-pack. Mold resistant with high light reflectance (83% or more) and high recycled content (50% or more). Suitable for library applications where controlled acoustics and improved illumination are desired
General-purpose mineral fiber ceiling tile from the Dune series, white color, with square lay-in edge for 15/16 in grid systems. Provides sound absorption with NRC 0.5, fire-resistive, high recycled content (50% or more), and standard light reflectance (82% or less). Suitable for music rooms and other commercial spaces requiring acoustic control. Sold in packs of 8
ARMSTRONG
General-purpose mineral fiber ceiling tile from the Dune series, white color, with square lay-in edge for 15/16 in grid systems. Provides sound absorption with NRC 0.5, fire-resistive, high recycled content (50% or more), and standard light reflectance (82% or less). Suitable for music rooms and other commercial spaces requiring acoustic control. Sold in packs of 8

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first