The AJ400+FD004 Black Concealed Tank is a premium concealed cistern designed for modern bathrooms, offering a space-saving, wall-mounted solution for wall-hung toilets. Finished in a striking matt black color, this concealed tank measures 500×95×1140
The AJ400+FD004 Black Concealed Tank is
a premium concealed cistern designed for modern bathrooms,
offering a space-saving, wall-mounted solution for wall-hung toilets. Finished
in a striking matt black color, this concealed tank
measures 500×95×1140mm, featuring a tall, slim profile that fits
neatly inside partition walls. Constructed from metal and plastic materials
with a smooth surface, this embedded-type cistern includes a double
button flush system for water-saving operation. Backed by an
exceptional 15-year warranty – one of the longest in the
industry – and shipped in a 5-layer carton brown box, the
AJ400+FD004 is a durable, reliable, and stylish choice for any modern bathroom
renovation or new construction.
Key Features Explained
|
Feature |
Description |
|
Concealed Tank Design |
Hidden inside the wall for a clean, minimalist look. Only
the flush plate is visible. Creates a seamless bathroom aesthetic. |
|
Matt Black Colour |
Striking matt black finish for the flush plate (and
visible components). Bold, dramatic, and sophisticated. Complements modern
bathroom designs. |
|
Metal + Plastic Construction |
Durable combination of metal and plastic materials. Strong
frame with quality plastic components. Long-lasting reliability. |
|
Tall & Slim Profile |
500×95×1140mm – tall, narrow design. Fits inside standard
partition walls. Provides excellent water pressure due to height. |
|
Double Button Flush System |
Dual flush buttons for water-saving operation. Choose
light flush for liquid waste or heavy flush for solid waste. |
|
Embedded Type Installation |
Installed inside the wall (behind tile or drywall).
Completely hidden from view. Only the flush plate is exposed. |
|
Smooth Surface |
Smooth finish on visible components. Easy to clean and
maintain. |
|
15-Year Warranty |
Exceptional long-term protection – 15 years of peace of
mind. Among the longest warranties in the industry. |
|
Complete Accessories |
Includes fixing screws for installation. |
|
Premium Packing |
5-layer carton brown box for safe delivery. |
Technical Specifications
|
Specification |
Detail |
|
Item Name |
AJ400+FD004 |
|
Brand |
BENLIVE |
|
Product Name |
Concealed Tank |
|
Colour |
Matt Black (flush plate) / Blue (additional details) |
|
Material |
Metal + Plastic |
|
Surface |
Smooth |
|
Dimensions (W × D × H) |
500 × 95 × 1140 mm |
|
Flush System |
Double button |
|
Water Outlet |
None (check with supplier for specific connection) |
|
Installation Type |
Embedded Type (in-wall) |
|
Seat Cover |
None (for wall-hung toilet system) |
|
Accessories |
Fixing screws |
|
Packing |
5-layer carton brown box |
|
Warranty |
15 Years |
Dimensions Diagram
|
Dimension |
Measurement |
|
Width |
500 mm (50 cm / 19.7 inches) |
|
Depth |
95 mm (9.5 cm / 3.7 inches) – slim profile for wall
installation |
|
Height |
1140 mm (114 cm / 44.9 inches / 3.74 feet) – tall for good
water pressure |
Installation requirements:
Concealed Tank Design – Detailed
|
Feature |
Detail |
|
Type |
Concealed / In-wall cistern |
|
Visibility |
Hidden inside wall – only flush plate visible |
|
Appearance |
Clean, minimalist, seamless |
|
Space saving |
Frees up floor space |
|
Cleaning |
No external tank to clean around |
Why choose concealed tank:
Matt Black Colour – Detailed
|
Feature |
Detail |
|
Colour |
Matt Black (flush plate) |
|
Finish |
Matte – non-reflective, modern |
|
Style |
Bold, dramatic, sophisticated |
|
Compatibility |
Complements matt black faucets, showerheads, and towel
bars |
|
Maintenance |
Hides fingerprints and water spots well |
Why matt black:
Metal + Plastic Construction – Detailed
|
Feature |
Detail |
|
Frame material |
Metal – strong, durable support structure |
|
Components |
Plastic – quality flush mechanism and fittings |
|
Benefits |
Strength of metal with reliability of plastic |
|
Corrosion resistance |
Designed for humid bathroom environments |
Tall & Slim Profile – 500×95×1140mm
|
Feature |
Detail |
|
Height |
1140mm – tall for excellent water pressure |
|
Depth |
95mm – slim enough for standard partition walls |
|
Width |
500mm – standard concealed tank width |
|
Water pressure |
Excellent due to tall water column |
Why tall profile matters:
Double Button Flush System – Detailed
|
Feature |
Detail |
|
Button configuration |
Two buttons for dual flush options |
|
Light flush button |
For liquid waste – uses less water |
|
Heavy flush button |
For solid waste – full flush power |
|
Appearance |
Matt black flush plate matches modern décor |
|
Location |
Mounted on wall above toilet |
Benefits of dual flush:
Embedded Type Installation – Detailed
|
Feature |
Detail |
|
Installation type |
Embedded / In-wall |
|
Location |
Inside partition wall or stud wall |
|
Accessibility |
Access panel for maintenance (if required) |
|
Wall finishing |
Must be installed before tiling or drywall |
|
Professional required |
Yes – mandatory for proper installation |
Important installation notes:
Wall-Hung Toilet Compatibility
|
Feature |
Detail |
|
Purpose |
Provides flush water for wall-hung toilet |
|
Compatibility |
Standard wall-hung toilet connection |
|
Load bearing |
Supports toilet weight (via separate carrier system) |
|
Note |
Confirm compatibility with specific toilet model |
15-Year Warranty – Detailed
|
Feature |
Detail |
|
Warranty period |
15 years |
|
Coverage |
Tank structure, flush mechanism, components |
|
Industry comparison |
Standard tanks offer 1-5 years |
|
Value |
Exceptional – among the longest warranties available |
Why 15-year warranty matters:
Best For
Installation Requirements
|
Requirement |
Detail |
|
Wall type |
Partition wall, stud wall, or masonry wall with framing |
|
Wall depth |
Minimum 120mm to accommodate tank |
|
Installation timing |
Before wall finishing (tiling, plasterboard) |
|
Professional |
Mandatory – qualified installer required |
|
Water supply |
Standard water line connection |
|
Toilet connection |
Connect to wall-hung toilet |
|
Access panel |
Recommended for future maintenance |
Comparison – Concealed Tank vs Exposed Tank
|
Feature |
AJ400+FD004 Concealed |
Exposed Tank |
|
Visibility |
Hidden in wall |
Visible on wall |
|
Aesthetic |
Clean, minimalist |
Traditional |
|
Space |
Saves space |
Takes wall space |
|
Cleaning |
No external cleaning |
Requires regular cleaning |
|
Installation |
Complex (in-wall) |
Simple (surface mount) |
|
Installation cost |
Higher |
Lower |
|
Maintenance access |
Through access panel |
Direct access |
|
Warranty |
15 years |
1-5 years |
|
Best for |
New builds, renovations |
Existing bathrooms |
Packing – 5-Layer Carton Brown Box
|
Feature |
Detail |
|
Carton type |
5-layer brown carton |
|
Protection |
Strong, durable packaging |
|
Safety |
Protects tank during shipping |
Operation & Usage
Daily operation:
Maintenance:
Maintenance Tips
|
Task |
Frequency |
Notes |
|
Clean flush plate |
Weekly |
Wipe with soft damp cloth |
|
Check flush operation |
Monthly |
Ensure both buttons work |
|
Professional inspection |
Every 2-3 years |
Through access panel |
Troubleshooting Guide
|
Problem |
Likely Cause |
Solution |
|
Weak flush |
Low water pressure |
Check water supply |
|
Continuous running |
Flush valve issue |
Access panel – call professional |
|
Buttons sticking |
Debris buildup |
Clean flush plate |
|
Leak inside wall |
Connection issue |
Call professional immediately |
|
No flush |
Water supply off |
Check shut-off valve |
