






Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.
🚽 Upgrade your flush game—quiet, powerful, and perfectly tailored!
The Fluidmaster 400H-002 Performax is a high-performance universal toilet fill valve designed for quiet operation and customizable water control. Featuring a 7/8 inch inlet, it fits most toilet models and includes adjustable dials for tank and bowl water levels, ensuring efficient flushing and water savings. Easy to install with clear instructions, this code-approved valve combines durability with superior performance for a hassle-free upgrade.





| ASIN | B07N7BH94Q |
| Best Sellers Rank | 303,208 in DIY & Tools ( See Top 100 in DIY & Tools ) 648 in Toilet Tanks |
| Brand | Fluidmaster |
| Connector Type | Connector G |
| Customer Reviews | 4.6 out of 5 stars 17,087 Reviews |
| Exterior Finish | Gemalt |
| Exterior finish | Gemalt |
| Included Components | Toilet Fill Valve and Parts |
| Inlet Connection Size | 0.88 Inches |
| Inlet Connection Type | Fill |
| Inlet connection size | 0.88 Inches |
| Inlet connection type | Fill |
| Item Dimensions | 8.5 x 11 x 33.5 centimetres |
| Item Type Name | High Performance Tank and Bowl Water Control |
| Item Weight | 272 g |
| Item dimensions L x W x H | 8.5 x 11 x 33.5 centimetres |
| Manufacturer | Fluidmaster |
| Material | Plastic Rubber |
| Maximum Pressure | 80 Pound per Square Inch |
| Model Number | 400H-002-P10 |
| Number of Pieces | 1 |
| Number of Ports | 2 |
| Outlet Connection Size | 4.33 Inches |
| Outlet Connection Type | G Connector |
| Part Number | 400H-002-P10 |
| Set Name | Single |
| Size | 1- Pack |
| Smart Home Compatibility | Not Smart Home Compatible |
| Specification Met | code approved, anti-siphon design and water saving bowl water level adjustment |
| Thread Size | 3/8 inch |
| Thread Type | NPT |
| UPC | 300716763504 039961025913 300719040572 |
| Unit Count | 1.0 count |
| Valve Type | Filling valve |
D**L
7/8 inch inlet
Reading other people's comments on being the wrong size is exactly why I bought it!! The inlet fitting is 7/8 inch(22mm) , fitted straight out of the box, just had to adjust height . Worked a treat. Again, the inlet is 7/8 inch, measure your original inlet pipe to be sure.
J**C
Check hole and pipe sizes first.
Make sure your cistern hole and pipes can take it mine are 15mm so no it doesn't most older cistern toilets can not use this as smaller hole and pipes.
M**Y
Not suitable for British plumbing
Pipe thread does not fit English plumbing. Too big to go through cistern hole and won't fit standard plumbing size.
I**D
WARNING! Not for UK toilets!
I fell into the same trap as others did (I realise now, reading their reviews): this is made for US plumbing with a 7/8 inch BSP inlet pipe (I think that's the measurement - it doesn't actually say, and that is the problem). So it's "universal" for American plumbing, but your UK inlet pipe will probably be too narrow to connect to it. Apart from the total lack of compatibility, this seems like a good product. But why is it being sold in the UK?
T**F
Too big for a standard 1/2 hole
The fitting is approx 1mm too big for the hole in my loo, which when I got an alternative was proven as the alternative 1/2 size was fitted in minutes. I am now having to return for a refund. Not universal as advertised.
S**L
Only purchase if you are in America/Canada.
Looks really good but only made for American and Canadian connections. Why is this being sold on the UK website? NO plumbers merchants in my area could find anything that would fit the thread at the bottom. This needs removing from the UK Amazon site.
M**F
Water inlet pipe too large
The product installed perfectly until I tried to fit the water supply and the fittings did not fit .The Fluidmaster inlet pipe is a few millimetre too wide so my bog standard half inch flexible hose would not fit
S**S
Not a standard 1/2" fitting
It's not listed on the product page anywhere so tried my luck. OD on this is 25mm vs the 20mm OD used in the UK so won't fit without downsizing.
C**O
Satisfecho
Cumple con mis espectativas, eficiente, fácil de instalar
I**A
Fluidmaster 400H-002 Performax Universal-Toil
Perfect fit and fast delivery
D***
Funciona excelente con alta presión de agua
Cuento con hidroneumático (30-50 psi) en mi hogar, tuve que cambiar mis antiguas válvulas con flotador porque provocaban vibraciones excesivas en las tuberías, estas vibraciones sólo desaparecían cuando cerraba casi por completo la válvula de control angular, lo cual no era conveniente porque tardaba hasta 15 minutos en llenarse el tanque. Encontré esta válvula después de buscar en foros de plomería, pedí esta versión de 2 válvulas, vienen en una caja de cartón perfectamente resguardadas. La válvula es de plástico (PP y POM) de gran calidad, aunque puede parecer frágil al tacto, es muy resistente una vez instalada. La instalación es bastante sencilla (solo ocupé una llave inglesa y el vídeo de instalación en la descripción de este producto). Adjunté un video de su funcionamiento luego de bajar la palanca completamente, llenó el tanque de mi inodoro (4.5 L) en menos de medio minuto y no hubo golpe de ariete (vibración de tubos). Aclaro lo siguiente, no es tan silenciosa como promociona la página de Fluidmaster (pero sí más silenciosa que una válvula de llenado con flotador Fleximatic, como el de la foto), sin embargo, sí llena el tanque bastante rápido y trabaja excelente con alta presión de agua (hasta 125 psi). El producto no es caro en comparación con lo que ofrece (llenado rápido, eficiente con alta presión de agua, silencioso si lo comparas con válvulas de flotador), además tiene garantía de 7 años. LO RECOMIENDO.
H**N
Very good item
This item fits my house “American Standard” toilets perfectly
M**S
Bra pris
Bra pris
Trustpilot
3 weeks ago
3 weeks ago