Daiwa Spinning Reel Spool Compatibility Chart and How to Read It
Daiwa Korea’s website provides information on compatible spools for each type of reel, as shown below. However, I feel that it is a bit lacking, so today I will look into the compatibility of Daiwa spinning reels based on information provided in Japan.

First, the Daiwa compatibility chart attached below differs in that No. 1 is for before the release of the LT reel, while No. 2 is for after. However, I believe No. 1 will be more useful to anglers, so I encourage anyone who needs it to download and use it.
First, to see Daiwa’s spool compatibility chart, select the model of the reel you own on the left, then move to the right to find ○, ●, ◎, and then find the RCS spool above to select a compatible spool.
However, the price of a custom spool called a RCS (Real Custom System) spool is not cheap, so it is often difficult to decide on one. This post is not intended to explain how to find an RCS spool, but rather to find out how to make a general stock spool compatible using the RCS spool compatibility table provided by Daiwa. So, let’s take a closer look from now on.
Let’s take 16 Certate as an example. First, if the reel you have is 16 Certate 1003, 2004CH, or 2004, look for ○, ●, or ◎ in the red square and find the RCS spool above it.
※ The ゴールド and レッド after the model name indicate the colors gold and red.
In the picture above, when you see that 1503, 2004 Air II, 2004, and 2006 PE match, this means that not only 1503 but also 2000 series RCS spools can be installed on the 1003 reel of the 16 Certate. In other words, this means that the genuine spool of 2004 can be installed on the 1003 reel of the 16 Certate .
Secondly, in the case of 16 Certate 2500, 2506H, 2508PE, 2510PE-H, 2510R-PE, the types of RCS spool on the top are 2506, 2508, 2500, which means that they can be mounted on 16 Certate 2506, 2508, 2500 reels, which means that for 16 Certate 2500 series, you can choose from various types of RCS spools with different winding capacity or drag power to suit your taste.
Now, let’s say you currently own a 16-Certate 2510PE-H. The 2510PE-H has a spool capacity of 150 meters of PE 1.5. What if you want to replace it with a spool capable of 150 meters of PE 0.8? The solution is to install a genuine 2508PE spool.
Now, going back to the beginning, if the spool size is the same as shown in the spool compatibility chart of spinning reels on the Daiwa Korea website, you can fully understand that the spools of Exist, Certate, and Rubias are compatible with each other in the 1003 size, and are compatible with many more models in the 1500 and 2000 sizes.
However, some reels are not compatible depending on the model year, and with the release of new LT concept reels, Daiwa’s spool compatibility is considered to be lower than before.
Lastly, if you look at the compatibility table, you can see that the 2510PE-H can be equipped with genuine spools such as 2500, 2506, 2506H, 2508PE, and 2510R-PE. In fact, if you replace the spool of the 2510PE-H with the genuine 2500 spool, you can see that there is no problem with compatibility.
This may not be of much use to many people, but I will conclude this article by looking at the RCS spool compatibility chart provided by Daiwa to determine the compatibility of genuine spools.











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