Toilet Closet Bend Size

A reducing closet bend configuration or a 4 3 closet bend has two different sized ends to connect two different sized pipes.

Toilet closet bend size.

If you are not certain about your toilet pipe size this flange would be appropriate to use. The closet bend actually has two diameters because it connects the 3 inch drain pipe to the 4 inch drain line. One end in most cases the inlet is 4 inches wide this mounts to the toilet and the outlet end is 3 inches in diameter. This is the most important and often challenging part of toilet plumbing but if you know what to do it is very manageable.

The bottom of this size flange will fit standard sized drain pipes. The flange has a flat surface with bolt mounting slots onto which the toilet mounts and it lays flat and flush to your floor. A closet bend is usually made in an elbow shape allowing the exit flush of a toilet to go out at a 90 degree angle horizontally along the wall. In addition a 4 x 3 toilet flange is the size of most closet bend pipes.

A 4 x 3 toilet flange has a four inch topside and a three inch bottom diameter. A toilet flange is a mounting base for your toilet that is installed on top of a soil pipe that connects to the closet bend the angled pipe leading to your drain. A closet bend is the 90 degree angle pipe installed beneath your toilet in the bathroom. Water closet s flushing 1 6 gallons or less are rated at 3 dfus drainage fixture units.

Most flanges have a 3 or 4 inch. A closet bend is the curved section of the length of a drain pipe that is found just below the toilet. Also if you need help figuring out how to vent a toilet check out our other article here. Measure the inside diameter of the toilet flange to determine the right size for the closet bend.

Some older model toilets flushing over 1 6 gallons per flush are rated at 4 dfus. This pipe fitting is set under the toilet in the floor joists or ground in toilets on concrete slabs. The closet bend is attached to the waste pipe. The closet bend attaches to two different pipes including the soil pipe a drain pipe.

This is so the closet bend can connect to a larger 4 inch diameter drain pipe and 3 inch pipe. Knowing these things can save you time and money. The top of the closet bend is 3 inch diameter pipe while the other end is 4 inch. Regardless of your plumbing code the minimum drain size for a toilet is 3 inches.

Or suppose you re roughing in a toilet and there s a floor joist in your way. The toilet flange is the round steel ring installed in the floor.