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🚽 Upgrade your flush game—effortless, efficient, essential!
The Siamp 32500007 Optima 50 is a WRAS-approved dual flush valve designed for easy replacement without removing the cistern. Compatible with major brands, it features adjustable height and overflow settings for a perfect fit, ensuring water efficiency and long-lasting performance backed by a 10-year warranty.



| ASIN | B00VX68DIG |
| Best Sellers Rank | 4,793 in DIY & Tools ( See Top 100 in DIY & Tools ) 7 in Toilet Parts |
| Brand | SIAMP |
| Country of Origin | France |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,406) |
| Exterior Finish | Plastic |
| Included Components | 1 x Flushing Mechanism |
| Inlet Connection Size | 1.5 Inches |
| Inlet Connection Type | Female Iron Pipe |
| Item Dimensions | 9 x 12 x 27.5 centimetres |
| Item Type Name | Siamp 32500007 Optima 50 Flushing Mechanism |
| Manufacturer | SIAMP |
| Manufacturer Warranty Description | 10 year. |
| Material | Ceramic, Plastic |
| Model Number | 03247230071302 |
| Number of Pieces | 1 |
| Number of Ports | 3 |
| Outlet Connection Size | 1.5 Inches |
| Outlet Connection Type | FNPT |
| Part Number | 32500007 |
| Size | 27.5 cm |
| Thread Size | 38mm |
| Thread Type | BSP |
| Unit Count | 1.0 count |
| Valve Type | Dual Flush Valve |
M**B
Perfect purchase
I didn't want to break the toilet bowl and tank. Perfect, fits perfectly! Great that I found it!
D**E
Great design for changing to new one
Bought this to replace an original Siamp flush in a hidden cistern toilet. I am a 56 year old woman on my own and I had no problems fitting it due to the twist and click fitting cage design. The old one twisted out no problem and this new one went straight in. The old one had been in for more than 10 years so I'm hoping this will last as long.
J**D
SIAM Optima 50 - Cable is short
States it has the longer 470mm cable, but the one I received had a shorter cable. Only just managed to reach the remote button, which the previous version did easily. The unit itself is a straightforward replacement, and work fine, so no issues with that.
J**H
Easy to install and great functionality
Bought this to replace an existing one and it was super easy to swap out. It fitted perfectly into our cistern and works exactly as required. Will buy again if needed.
C**T
Great item for a direct replacement
Great item for a direct replacement. No need to keep the carrier (bottom section) as if you have a previous one fitted, just quarter turn to inlock the top section and swap over with the new section. No instructions so was a little confused as the water level was lower than the central overflow tube but you have to cut the centre tube with a fine tooth saw/hacksaw when you have determined the correct overflow height. The graduation son the side of the central tube give you a guide. Easy fit, ten mins plus sawing time. Reconnect up the push button and all good.
L**Y
Cable too short
Marked down as cable was too short. Had to purchase one from a local diy store
R**O
Very good quality
As described,happy with product
A**T
Works a charm
Perfect fit, sorted out our troubled bog. No more festering waste :)
B**O
Trop petit car mon réservoir d'eau fait 50 cm de haut
B**.
Ser bra ut. Använde aldrig. Sparat för framtiden.
M**.
Works perfectly, and only took a minute or two to install because I was replacing an older model whose base/seat is compatible with this model. The cable-based button makes it much easier to install and to lift the cistern lid in case I need to access the mechanism in the future. Replacing the flush valve myself saved the costs of buying a new toilet and hiring a plumber. It couldn't have been easier.
R**T
Good product
S**V
Je l'ai installé grâce à la vidéo de la marque qui est très claire (un monsieur avec un noeud papillon et des bretelles). La notice en français est à chercher sur le site de la marque également. Le chasse d'origine était une SIAMP aussi et comme celle-ci a duré 16 ans, j'ai repris la même marque. 1°/ Une petite déception : cela n'est pas fourni avec une clé de serrage de la bague à visser sous le réservoir, j'ai du en acheter une qui me resservira. J'ai cru alors que le produit n'était pas étanche quand je vidais la chasse. En fait, mes toilettes avaient un coude de chasse en plastique qui avait un joint qui est resté dans le pied du WC au démontage et que je n'avais pas vu laissant passer toute l'eau. 2°/ Mon ouverture dans le couvercle du réservoir pour le bouton pression était supérieur au tableau de la marque (5 cm) mais la rosace s'adaptait quand même. 3°/ Attention aux joints blancs à serrer sous le réservoir d'eau sur les vis qui le maintiennent: si vous serrez trop fort ils peuvent se couper. Les joints doivent s'étaler un peu pour garantir une étanchéité. Sinon très bon produit, fonctionnant très bien et étanche. Dommage qu'il ne soit pas livré avec une clé de serrage plus pratique qu'une clé pélican.
Trustpilot
3 days ago
2 weeks ago