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🚽 Upgrade your flush game with Ibergrif’s precision-engineered inlet valve!
The Ibergrif M20521 Toilet Cistern Inlet Valve features a precise G3/8 inch (16mm) connection, compatible with most dual flush toilets. Its unique design supports both bottom and side entry installation, making it adaptable for integrated or two-piece toilet systems. Crafted from durable ABS with a brass fastening nut rated for 100,000 cycles, it promises long-lasting performance. The valve includes an adjustable float latch for water level control and a built-in filter to prevent impurities, ensuring efficient and reliable operation.









| ASIN | B0BKSQ5VN1 |
| Best Sellers Rank | 31,514 in DIY & Tools ( See Top 100 in DIY & Tools ) 15 in Toilet Tanks |
| Brand | Ibergrif |
| Connector Type | Slip |
| Country of Origin | España |
| Customer Reviews | 4.1 out of 5 stars 3,305 Reviews |
| Exterior Finish | Brass |
| Exterior finish | Brass |
| Included Components | 1*toilet cistern fill valve 1* Water pipe 1*Instruction Sheet |
| Inlet Connection Size | 0.38 Inches |
| Inlet Connection Type | Tip solder at |
| Inlet connection size | 0.38 Inches |
| Inlet connection type | Tip solder at |
| Item Dimensions | 24.5 x 12.2 x 6.3 centimetres |
| Item Highlight | Float Valve For Toilet Cistern, Brass Nut Connection, Check Inlet Size Before Purchase(16mm) |
| Item Type Name | toilet cistern fill valve |
| Item dimensions L x W x H | 24.5 x 12.2 x 6.3 centimetres |
| Manufacturer | Ibergrif Griferias SL |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Maximum Pressure | 16 Bars |
| Model Number | M20521 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Number of Ports | 1 |
| Outlet Connection Size | 0.38 Inches |
| Outlet Connection Type | G Connector |
| Part Number | M20521 |
| Set Name | Multi Color |
| Size | 13.3 cm x 28.5 cm x 6.9 cm |
| Specification Met | CE, ISI |
| Thread Size | M13-17 |
| Thread Type | Metric, Pipe |
| Unit Count | 1.0 count |
| Valve Type | Float Valve |
6**0
Does the job.
Slightly fiddly getting it just right but very effective, quiet and adjustable. Well designed and can work around awkward cisterns.
M**S
Good service
Good product
R**E
Good quality
Didn't fit my old existent system, but seems to be good quality
P**O
Toylet
I ordered it by accident without checking, the thread was too small, but the quality was high, there was no problem with returning it
H**Y
Nice piece of kit, but incompatible with UK fittings.
Standard connection for 15mm pipe in the UK is 1/2 inch BSP. This inlet valve came with a thread I had never encountered before, so I returned it. Whole process was very easy, now quibble, no fuss. It looks like it would be easily adjusted, but I never needed to.
K**R
Dont Buy
Does not fit a standard UK 1/2 BSP I drove miles on Saturday trying to find an adaptor, in the ned I gave up & brought a Flowmaster.
N**N
End result is great....
Filler unit: Easy too fit, works as it should, just remember it probably won't be a straight swop with your existing system, you will need a 3/8 connection. For example in my case, a flexi 15mm to 3/8 tap connector. Flushing unit: what a nightmare, outlet is 60mm, hole in bottom of cistern 2in /50mm. Tbh, unless you take out your old unit you probably wouldn't know, anyway, got out a grinding stone on a drill, 3 hours later, a 60mm hole, end result is perfect, works great.
J**K
Works great and pretty easy install.
Just a quick note, make sure your current cold water inlet fits the 3/8 connection. I forgot to do that and ended up having to shop around for some connections to make a feed that makes it fit the BSP connection. Besides that, installed great and been working couple months no issues.
V**I
Veloce, pratico, silenzio ed economico in sostituzione al vecchio palloncino.
Il sistema è semplicissimo da montare per cassette esterne con galleggiante catis. L'unico problema riscontrato è stato l'ingombro del blocco Catis che fa lavorare il galleggiante non perfettamente in verticale. Nonostante il galleggiante lavori un po' diagonalmente e nonostante tocchi il blocco catis, fa lo stesso il suo lavoro in maniera perfetta. La plastica del galleggiante che apre e chiude la valvola è protetta dal suo involucro stesso e quindi il galleggiante non si blocca.
T**L
Spłuczka
Dobrej jakości spłuczka
A**R
Perfect
Perfect
J**S
Works great after adjustment
Good price, but to install in Sweden you need to buy a sizing nut to adapt to Swedish pipes
J**G
TopArtikel
Sehr einfach zu installieren, funktioniert super.
Trustpilot
2 weeks ago
1 day ago