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Oatey End-of-Pipe Gripper Plugs mechanically expand to seal the end of a pipe and hold pressure when testing a piping system. The extra large wing nut makes installation easy without tools. Oatey products have earned the trust of plumbing professionals for over 100 years.
From the Manufacturer
Oatey products can be found in residential and commercial applications and have achieved excellent brand name recognition with consumers. All products are backed with the highest quality technical and customer support programs in the industry
Arthur Holt
2025-08-27 15:37:05
Worked awesome to plug the toilet drain in my bathroom during remodel. Fit inside the flange and has a chamfer that keeps it from falling into the drain before tightening it. Kept debris out of the drain and the sewer gas smell from seeping through. Definitely buying the sizes for my other drains for future projects. Great buy for a DIY-er.
Steven
2025-08-07 12:37:23
I was noticing for years a funky smell in my basement. Kept dumping water in my floor drain thinking it was drying up but that never got rid of it. Finally one day water on my floor led me to move my chest freezer. AHA! Hidden under it was an old toilet flange (drain hole) that must have been from an old toilet. It was covered by a simple piece of wood. I purchased this and it sat down in the flange perfectly, a few turns of the screw and it was locked in there nice and tight. Problem solved and it took me all of 30 seconds to install. So anyway if you've got an old toilet flange to cap look no further than this bad boy, works like a charm and couldn't be easier to install!
Customer
2025-08-05 11:28:20
Worked great to plug the end of pvc pipe for a project I was doing. Highly recommend.
Kyle
2025-08-01 20:57:02
One particular morning in late spring, my wife and I were planning on going to the hardware store to pick up some paint and supplies as she wanted to paint a room a different color in our house. She was tidying up in the kitchen and putting the dirty dishes into the dishwasher when she let me know that water was backing up into the sink and not draining. I figured something had just gotten lodged from the rinsing so I grabbed a plunger and went to town.After aggressively plumbing the kitchen sink, the water finally let loose and started draining normally. "What a relief" I said to myself and my wife. I asked if she was ready to go and she said yes. I had to grab something from the basement before we headed out to get what we needed. Whilst down there, I was met with a different scent from what I am used to. The smell was that of fresh washed dishes. Low and behold, there was just that, hot water with fresh dish soap suds, cover part of my basement. Cue me and my wife grabbing and moving everything out of the way to prevent the water damaging anything important. This is when I noticed the main drain cleanout in my basement was squirting water out of the edge of the lid and pipe like a cherub water fountain you find in your mother's landscaped garden.Needless to say, the trip to the hardware store was a different one for me as I had to put on my plumbing hat and rent a drain snake to dislodge whatever was preventing the water to go to where it needed to be and not my basement. To make a long story short, I removed some roots from the drain (not enough in my opinion to cause such a backup) and whatever else was the major issue and the water was able to drain normally.The last course of action was to find a solution to prevent the main drain from backing up into my basement again, which I found that test plugs are a good solution. So I found this one and it fits nice once you tighten it in place of the old cap. I can't speak to if it will prevent water from squirting back through again but I believe it is sealed a thousand times better than the old dingy cap that was there.Edit: Well I can't make this up, but I wrote this review and went to bed. Woke up next morning to my wife telling me that the kitchen sink was backing up. The very first first thing I did was to run to the basement to make sure there was no water shooting out of the cleanout. To my surprise, it was completely dry. Never thought I'd experience some happiness when there was a backup in the pipes but I was glad that this plug sealed the water and kept it where it should be. The rest of morning into the afternoon was spent replacing the kitchen sink basket and snaking drains but at least I didn't have to mop the basement floor thanks to this plug.
JON PATZER
2025-07-22 14:21:05
This plug was used to replace an old cap that had failed on a sewer clean out access. It worked as intended, and is a much better solution than the previous part.
Joshua S.
2025-07-18 14:55:52
Fit in the pipe perfectly and very easy to tighten the wing nut to secure it in the pipe for a very tight hold.
Earth Two John
2025-07-11 15:10:48
I used this to cap an unused 4 in pipe in my basement. It fit perfectly and seems well-made.
Arthur Holt
2025-07-01 15:04:10
Worked awesome to plug the toilet drain in my bathroom during remodel. Fit inside the flange and has a chamfer that keeps it from falling into the drain before tightening it. Kept debris out of the drain and the sewer gas smell from seeping through. Definitely buying the sizes for my other drains for future projects. Great buy for a DIY-er.
Steven
2025-06-10 11:08:29
I was noticing for years a funky smell in my basement. Kept dumping water in my floor drain thinking it was drying up but that never got rid of it. Finally one day water on my floor led me to move my chest freezer. AHA! Hidden under it was an old toilet flange (drain hole) that must have been from an old toilet. It was covered by a simple piece of wood. I purchased this and it sat down in the flange perfectly, a few turns of the screw and it was locked in there nice and tight. Problem solved and it took me all of 30 seconds to install. So anyway if you've got an old toilet flange to cap look no further than this bad boy, works like a charm and couldn't be easier to install!
Customer
2025-06-07 14:50:03
Worked great to plug the end of pvc pipe for a project I was doing. Highly recommend.
Kyle
2025-06-05 12:49:10
One particular morning in late spring, my wife and I were planning on going to the hardware store to pick up some paint and supplies as she wanted to paint a room a different color in our house. She was tidying up in the kitchen and putting the dirty dishes into the dishwasher when she let me know that water was backing up into the sink and not draining. I figured something had just gotten lodged from the rinsing so I grabbed a plunger and went to town.After aggressively plumbing the kitchen sink, the water finally let loose and started draining normally. "What a relief" I said to myself and my wife. I asked if she was ready to go and she said yes. I had to grab something from the basement before we headed out to get what we needed. Whilst down there, I was met with a different scent from what I am used to. The smell was that of fresh washed dishes. Low and behold, there was just that, hot water with fresh dish soap suds, cover part of my basement. Cue me and my wife grabbing and moving everything out of the way to prevent the water damaging anything important. This is when I noticed the main drain cleanout in my basement was squirting water out of the edge of the lid and pipe like a cherub water fountain you find in your mother's landscaped garden.Needless to say, the trip to the hardware store was a different one for me as I had to put on my plumbing hat and rent a drain snake to dislodge whatever was preventing the water to go to where it needed to be and not my basement. To make a long story short, I removed some roots from the drain (not enough in my opinion to cause such a backup) and whatever else was the major issue and the water was able to drain normally.The last course of action was to find a solution to prevent the main drain from backing up into my basement again, which I found that test plugs are a good solution. So I found this one and it fits nice once you tighten it in place of the old cap. I can't speak to if it will prevent water from squirting back through again but I believe it is sealed a thousand times better than the old dingy cap that was there.Edit: Well I can't make this up, but I wrote this review and went to bed. Woke up next morning to my wife telling me that the kitchen sink was backing up. The very first first thing I did was to run to the basement to make sure there was no water shooting out of the cleanout. To my surprise, it was completely dry. Never thought I'd experience some happiness when there was a backup in the pipes but I was glad that this plug sealed the water and kept it where it should be. The rest of morning into the afternoon was spent replacing the kitchen sink basket and snaking drains but at least I didn't have to mop the basement floor thanks to this plug.
JON PATZER
2025-05-15 12:57:39
This plug was used to replace an old cap that had failed on a sewer clean out access. It worked as intended, and is a much better solution than the previous part.
Joshua S.
2025-05-06 11:01:54
Fit in the pipe perfectly and very easy to tighten the wing nut to secure it in the pipe for a very tight hold.
Earth Two John
2025-05-04 15:46:58
I used this to cap an unused 4 in pipe in my basement. It fit perfectly and seems well-made.
Scott Salisbury
2025-04-24 10:38:07
Worked as it should to plug a 4†drain. Easy to use.
Customer
2025-04-19 11:11:00
This plug fit snug and perfectly for the sewer drain. Very pleased with it.
Neville Lobo
2025-04-17 16:24:43
Only hope is it lasts forever.If the wing nut design could have been changed to be flush with the floor, it would be an added advantage
Just Janet
2025-03-26 11:44:25
We are using this with our vacuum chamber (for dry canning), and it works perfectly.
Rod Pederson
2025-03-17 17:03:53
Product worked well in closing off sewer line. ðŸ‘
Jim S
2025-03-09 16:06:40
Bought this to seal off a toilet flange that we are no longer needing. This toilet flange was too hard to remove and at some point we may want to reinstall the toilet. The 4 inch sized one works perfect. A nice tight seal.
Scott Salisbury
2025-01-23 10:40:21
Worked as it should to plug a 4†drain. Easy to use.
Customer
2025-01-15 15:03:38
This plug fit snug and perfectly for the sewer drain. Very pleased with it.
Neville Lobo
2025-01-12 18:44:32
Only hope is it lasts forever.If the wing nut design could have been changed to be flush with the floor, it would be an added advantage
Just Janet
2025-01-08 17:02:26
We are using this with our vacuum chamber (for dry canning), and it works perfectly.
Rod Pederson
2024-12-24 15:51:42
Product worked well in closing off sewer line. ðŸ‘
Jim S
2024-12-17 13:54:10
Bought this to seal off a toilet flange that we are no longer needing. This toilet flange was too hard to remove and at some point we may want to reinstall the toilet. The 4 inch sized one works perfect. A nice tight seal.
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