In terms of the popularity of domestic floor drain brands, the first place is not the high-end Viega, Geberit, nor the profound Moen and Kohler, but submarines. The submarine not only participated in the compilation of national standards and industry standards for floor drains, but also one of the floor drain brands with the largest market share in China. Although many floor drain manufacturers are eager to try, so far, submarines are still the most well-known brand in this market.
 
In recent years, the submarine has developed a new generation of mechanical seal inner cores "UFO", which are equipped on almost all of its products and can be removed and replaced. This core has two sealing measures, one is the gravity of the flap, which will naturally cover the drain when there is no water. The second is magnetism, and the magnets at the end of the flap and the lower end of the drain can also strengthen the seal. Because the displacement path is not tortuous, the displacement speed of the inner core of the submarine is higher than that of the water-sealed floor drain.
 
Submarine floor drains all use UFO cores, so the performance of most products is not much different, the difference is usually in the material, specifications, style and other details, which is also the norm for domestic brands. However, the submarine has made the floor drain product line very comprehensive. From ordinary square floor drains, washing machine floor drains, to invisible floor drains, strip floor drains are involved. Although the same inner core is used, the floor drain panel is very rich in style, and the choice is huge.
 
The more classic is the basic copper chrome TK50-10, which is characterized by a large grille opening area, so it drains relatively quickly and is less prone to water accumulation. However, this design has limited effect, because the main factors that determine the drainage efficiency are the core openings and the slope of the ground. Under the same series, the submarine also has TK50-10X, LTK50-10 and other floor drains, the former "X" represents the washing machine floor drain, and the latter "L" represents the wire drawing process. Compared with chrome plating, the gloss of brushed floor drains is slightly weaker, but the surface is not easy to draw, which is suitable for users who prefer a low-key style. The price of several floor drains is in the early 100 yuan, and the cost performance is excellent.
 
There are TKC50-10, TKC50-20, TKC50-30 in the same series, three rectangular floor drains, the length is 150mm, 200mm, 300mm, although the length is still limited, strictly speaking, it is not a strip or linear floor drain, and it cannot be used with large bricks such as 600mm and 800mm, but the price of about 200 yuan is also relatively pleasant.
 
In addition, the stainless steel Duanya series is also more popular, the price is only about 90 yuan, which is one of the cheapest products for submarines. In addition to the traditional hidden floor drain "Da Yin" series, the annular sewer of the Jingya series LTDF50-10 is also very distinctive. If you want to pursue decoration, the submarine also has several series of carved panels such as European style, ocean, and grand view, and the panel styles are very rich.
 
If you need a strip floor drain, the Submarine Master series is a good choice, and it is available in three sizes: A300 (300mm long), A600 (600mm long), and A888 (888mm long). Unlike the products of Viega and Geberit, the strip floor drain of the submarine does not have a base, and the installation comparison is not much different from the traditional square floor drain, and the construction is relatively simple. The biggest advantage of the long strip floor drain is that it can be used with large bricks, and you can plan a slope of 2 degrees in advance when looking for slopes. The traditional square floor drain is only about 10cm long, and in order to find the slope, it is usually only possible to cut the tile to create the slope, thus destroying the integrity of the ground. However, the submarine master series is cost-effective, and the price is 600~1200 yuan. Since there are a large number of imitations of submarine floor drains on the market, it is recommended to buy them from official channels as much as possible.