
The 4x3 size refers to the two diameters in the flange pipe. The bottom is designed to fit on 3-inch schedule 40 pipe used in most homes as standard sized drain pipe. This is also the size of the closet bend pipe in most cases.
Full Answer
What size is a 4x3 toilet flange?
Jan 14, 2020 · What is a 4x3 closet flange? Standard 4x3 Toilet Flanges The 4x3 size refers to the two diameters in the flange pipe. The bottom is designed to fit on 3-inch schedule 40 pipe used in most homes as standard sized drain pipe. This is also the size of the closet bend pipe in most cases. Click to see full answer. Besides, what is a 4x3 closet bend?
Can you use a 4 inch flange on a 3 inch pipe?
May 07, 2020 · Standard 4 x 3 flange Most toilet flanges have a standard 4 x 3-inch size. The top of the flange where the toilet sits is wider with a 4-inch diameter while the bottom part which goes into the drainpipe is 3 inch in diameter. 2. 3-Inch Flange This is a uniform toilet flange meaning that the top and bottom diameters are both 3 inch.
What size is a 3 inch drain flange?
Dec 07, 2021 · Standard 4 x 3-Inch Toilet Flanges The most common and readily available toilet flange is the 4 x 3-inch size. This pipe is 4 inches wide at the top but only 3 inches wide at the bottom. The 3-inch bottom is the correct size for fitting the schedule 40 pipe most frequently used in …
What is an offset flange?
Shop for 4x3+closet+flange at Ferguson. Ferguson is the #1 US plumbing supply company and a top distributor of HVAC parts, waterworks supplies, and MRO products. ... Oatey® Easy Tap® 4 x 3 in. PVC EZ Iron Pipe Thread Tap On Pipe Closet Flange With Stainless Steel Ring. Part # O43613. Item # 3287257. X. POINTS. $11.00. EACH. Add to Cart ...

What does 4x3 toilet flange mean?
The most common and readily available toilet flange is the 4 x 3-inch size. This pipe is 4 inches wide at the top but only 3 inches wide at the bottom. The 3-inch bottom is the correct size for fitting the schedule 40 pipe most frequently used in home drains.
How do I know what size toilet flange I need?
What is the difference between a closet flange and a toilet flange?
What is the most common toilet flange size?
The most common size is the standard 4×3 inch-flange. Its top is four inches wide, while the bottom has only three inches in diameter. The former connects to the toilet, whereas the bottom element fits the outlet drain.Nov 16, 2021
How do you measure a toilet closet flange?
How thick is a toilet flange?
How do you install a 3 inch toilet flange?
Is closet flange necessary?
Why is closet flange necessary?
Does a toilet flange fit inside 3 inch pipe?
Can you put a toilet flange inside a 3 inch pipe?
Can you put a new toilet flange over an old one?
In This Article
A toilet flange is a mounting base for your toilet that's installed on top of a soil pipe that connects to the closet bend, the angled pipe leading to your drain. The flange has a flat surface with bolt-mounting slots on to which the toilet mounts, and it lies flat and flush with your floor.
Standard 4 x 3-Inch Toilet Flanges
The most common and readily available toilet flange is the 4 x 3-inch size. This pipe is 4 inches wide at the top but only 3 inches wide at the bottom. The 3-inch bottom is the correct size for fitting the schedule 40 pipe most frequently used in home drains.
The 3-Inch Flange
A 3-inch flange measures the same size as the schedule 40 pipe most likely used in your toilet drain. This flange doesn't give you the wiggle room of a 4-inch flange, which results in a bit more pressure on the flange when you flush the toilet. This is a known issue, however, so 3-inch flanges can handle the extra load.
The 4-Inch Flange
The 4-inch flange installs on both 4- and 3-inch drainpipes. This flange is manufactured so it fits over the top of a 3-inch pipe (in other words, the pipe slides into the flange), or the flange fits inside a 4-inch pipe (the flange slides into the 4-inch pipe).
Odd-Size Flanges
Other odd-size flanges exist. Typically, the flanges are similar in size to the 4 x 3-inch flange, however. An ABS plastic flange with a 3 1/2-inch bottom diameter and a 7-inch top diameter is available. This flange is often used to connect an ABS drainpipe to the toilet.
Offset Flanges and Their Uses
Offset flanges help those with older homes or elongated toilets connect their toilet to the drain. Offset flanges are the same diameter as standard flanges, but the barrel of the flange sits at a 45-degree angle. This helps move the toilet away from the wall if the plumbing is too close for modern toilet sizes.
Types of Flange Material
Size is the most important factor when replacing a toilet flange, but flanges are made of several different materials that you should be aware of. PVC is generally the most popular flange material. It's cheap, durable, easy to work with, and readily available.
Product Overview
TheNIBCO 4 in. x 3 in. PVC DWV closet flange features a spigot connection. The closet flange is secured to the floor of the dwelling so that a toilet can be affixed to it and allow for a pipe connection (under the floor) to continue the piping for evacuation of the used water.
Info & Guides
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Product Overview
The NIBCO 4 in. x 3 in. PVC DWV Closet Flange is a pipe fitting that is used to mount a toilet. The flange is made of durable PVC, which requires a primer before cementing.
Info & Guides
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Which side of a gasket should be facing down?
The flat side of the gasket should be facing down and resting on the inside bottom lip of the flange. Tightening the four bolts in even rotation will compress the gasket against the outside of the pipe, and create a water tight seal.
Do toilet bowls need to be screwed into the floor?
Remember that the bottom of the flange must be set on top of the finished flooring, and then screwed into the subfloor. All flanges must be screwed into the subfloor before setting the toilet bowl into place, this sometimes will require drilling pilot holes through the finished flooring.
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Do you need to vent a stack sink?
the sink needs no vent as it is stack vented and within the prescribed distance from the stack.
Does a sink drain go straight to the stack?
As long as the sink drain goes HORIZONTAL from the sink to the stack, it will work.
Does flush fit taper?
this is what i mean by flush-fit. no taper at the ring. yours will fit inside the pipe not over it.
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