Oatey33402 End-of-Pipe Gripper Plugs, 3 in, 5 Psi Back

Works as stated. Did the job.

Perfect fit, quality construction, easy to remove for cleanouts, looks fantastic!!

Have this capping a toilet drain pending a bathroom remodel, to keep the sewer gas from coming into the house. Fits perfect, seals well. Good price for what it is.

used on a 3in port for a diesel heater when not in use . Very effective not allowing any rodents to get inside to chew up any wiring . Also used as a stop for clean out . no leaks and easy to remove for cleanup when needed .

While this product's intended use is for capping a PVC plumbing drain pipe for testing and temporary capping, I used it to seal a three inch stainless steel port I installed as a pass-through for my portable generator's power line. Keeps the weather out when the port is not in use and it's easy to install/remove. I've now used it four (4) times since we have been dealing with power outages caused by winter weather - it's doing exactly what I need it to do! If it's working for me in this alternative use, I am sure it would fill it's intended use(s) just as well. I recommend this item without reservation in terms of it's quality and usefulness. The only ding it got in my review is 'value for money'; for the components and simple design it has, it should have been a bit cheaper to purchase through Amazon than what I paid for it.

I had a cheaper plug from Menards that didn't hold up very well and ended up having sewage come back up in my basement. I bought this one as a replacement to plug the hole in my basement and it is rock solid 10 out of 10.

Works well for plugging turbo reservoir

This plug was simple to install! Just turn the big wingnut on top until the plug is securely in place. No more backups! Perfect.