This is a two-piece slip or spigot style flange with a loose rotating ring that allows aligning the bolts easily. Van Stone

Besides the sizes and materials from which closet flanges are made, toilet flanges can be classified based on other features, including design, how they work/ are installed, etc. To conclude, choosing the right size of toilet flange is essential for proper and efficient plumbing. The 4-inch pipe is a standard size for most toilets, but it is crucial to measure the size accurately to avoid any leaks or damage to the plumbing system. Soft copper flanges bend easily and can be easier to install than the hard type. Hard copper flanges will need elbow joints to allow you to effectively join them to the drain pipe. The elbow joints will aid in matching the space for a perfect fit.

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Plastic flanges are the most prevalent choice for closet flanges. You can use them for residential or commercial purposes. What makes plastic flanges an excellent choice is that they are affordable, can be customized to fit almost any drain setup, are rust-resistant (durable) and are lightweight. Plastic Flange PVS vs ABS Plastic Toilet Flanges The flange consists of two main parts: the collar and the flange ring. The collar is the part that fits inside the drainpipe and connects to the waste line. The flange ring is the circular piece of material that attaches to the collar and is used to secure the toilet in place. The ring also has a series of bolt holes that allow the toilet to be anchored to the floor. Understanding the anatomy of a toilet flange is crucial in ensuring that you have the correct size and material for your installation needs. Why is the right size toilet flange important for a 4 inch pipe You can slide the flange over the drain pipe or into the pipe. This is why there are only two diameters; three and four-inch flanges. Push-Tite Toilet Flange Last, but not least, is the aluminum type. It’s light, corrosion-resistant, and sturdy. Used to make primarily the wax metal ring, but can also make the entire flange. First, turn off the water supply. Then, remove the screws that hold the toilet bowl to the floor using a screwdriver. Next, lift the toilet bowl carefully, and you will be able to access the existing flange. Measure the diameter of the outside of the flange using a tape measure. The reading will give you an idea about the flange’s size, whether it’s a 3-inch or 4-inch flange. Make sure you measure each side to ensure accurate readings. Based on the measurements, you can decide the size of the toilet flange required for your 4-inch pipe. Different types of toilet flanges available for a 4 inch pipe

One major downside of cast iron is that it is susceptible to rusting. If not maintained properly, it rusts faster than any other metal flange. Depending on the extent of damage, it is possible to repair cast iron flanges instead of replacing them PVC/ABS Toilet Flanges The best aluminum type is unadulterated aluminum, however, an alloy with copper, zinc, magnesium, or manganese can make it more durable. Other Closet Flange Styles & Shapes On the other hand, PVC doesn’t have BPA, which means it is weaker but flexible and slightly cheaper than ABS. PVC Universal Drain Flange Metal and plastic are the major materials that toilet flanges are made from. While some flange manufacturers use both metal and plastic, there are noticeable differences between pure-metal and all-plastic flanges. Metal Toilet Flanges The 4×3 indicates two diameter dimensions; the top part that connects to the toilet, which is four inches, then the bottom diameter of three inches fitted to the drainpipe.

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When choosing a toilet flange for your 4 inch pipe, it is important to keep a few final tips in mind. Firstly, ensure that the flange you choose is compatible with the type of toilet you have. This is because some flanges are designed specifically for certain toilet types and may not fit others.