The dual flush button is very practical because it can fit three different toilet tank hole sizes: 38mm, 48mm, and 58mm. This design improves market compatibility and makes the product easier to use for different replacement needs. The fill valve and cable flush valve also look suitable for sample testing. Overall, the product selection is useful for evaluating the replacement market.

The toilet repair kit feels solid and does not have a cheap plastic feeling when held in hand. The overall product quality is better than expected for sample evaluation. The installation video provided in the product link is also very helpful, because it makes it easier for us to understand the installation steps and introduce the product to our customers. A good sample for replacement market promotion.