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Your cart is empty.Uniseal is simply the world's best seal. It is also incredibly easy to install. After cutting a hole in the wall of a tank or other surface, the seal is inserted. Then the pipe is coated with a slippery detergent (i.e. dish soap) and pushed into the seal. Uniseal products replace traditional plumbing hardware with a single injection molded unit requiring no component parts. It was designed to solve many of the issues of pipe to tank connections. For many industries pipe to tank seals are traditionally among the most complex connections to manufacture. Traditional seals require multiple parts such as, rigid flanges, bolts, washers, o-rings, along with long assembly times and high production costs. The Du Pont Alcryn is the key to the liquid-tight seal. When the pipe is pushed through the rubber-like Uniseal from the outside, the inside Alcryn wall becomes thin enough to allow the pipe to squeeze through and then forms a liquid-tight seal. The coefficient of friction with the plastic pipe is roughly three times higher than any other material which allows it to create a better seal than with any other material. In static conditions the seal is good up to 65 PSI. Uniseal can withstand pressure, and suction, acids, oils, greases, gasoline, sewage, waste, heat and cold. It offers long life, easy installation and reduced labor and material costs.
Sensei Russ Ohashi
Reviewed in the United States on June 3, 2024
These were easy to use them bulkheads that I have used in the past and the seal up really good and don’t leak. I recommend anyone to buy them that are making a RDWC system.
Dan
Reviewed in Canada on June 23, 2023
Using these and other sizes in my hydroponics systems and came home to a wet floor one day, one had cracked and was dripping slowly. When I checked the others, another one was cracked but not leaking yet.So 2 stars for 2 years :)
Redneck Albertan
Reviewed in Canada on December 8, 2023
Installed three so far, including one on the filler pipe to the HDPE fresh water tank on my bus conversion. Just make sure to follow the manufacturer's specified hole saw size and drill slow enough so as not to risk melting the plastic. I used a dab of Sunlight soap to install the ring and the pipe. Very happy with how tight and secure the end result was. Cheers!
Customer
Reviewed in the United States on August 17, 2022
Install a leak proof connection through glass or a barrel.
Trent Schekk
Reviewed in Canada on April 15, 2022
Duck pond barrel filter. Works great.
R. Boling
Reviewed in the United States on September 14, 2020
These are very hard to install and anyone who says you can install a pipe in these and then adjust the pipe as needed with ease is lying to you! I'm using them in a hydro setup with round 5 gallon buckets and adjusting them was so hard I gave up. I did have some the leaked but after getting the pipe back out which is not easy and reinstalling I was able to get 5 buckets linked with no leakage. Just lots of cursing and you will need a drink after fighting with these!
c
Reviewed in the United States on November 4, 2020
Good price. Works
DesigningOne
Reviewed in the United States on November 18, 2020
Used these to assemble a clay trap. The internal connections worked well as friction fit, even though I used a deburring tool to open the holes just enough to get the pipe through without damaging the thinner plastic tote. The connection that went to the sewer was on a thicker container which was a bit tough to push through. Not sure if needed, but I added some silicone sealant inside and out to guarantee a water free basement.
Shannon Hardy
Reviewed in the United States on July 19, 2019
a lot of people complain about these leaking, but if you know what youre doing, they work just fine, and much cheaper than bulkheads.
ICURN
Reviewed in the United States on June 30, 2018
I do like these, but it is difficult to get the pipe through once in place. Once in they work fairly well. Not as secure as a bulkhead, especially under pressure, but works reasonable well for the intended purpose. And MUCH more affordable than bulkheads.
S Green
Reviewed in the United States on September 9, 2017
This is the way to seal a PVC pipe to a tank. I also use them to seal pipe exits from the house - like an escutcheons. In this case of a retro fit I cut the seal, slap it on the pipe and use black silicone caulk for the split. See the picture for an example. Note that the retrofit usage isn't water tight. I am an engineer and I worry about things like plasticization between PVC pipe and anything it contacts. These are designed for PVC using EPDM. The quality of the seals is excellent. A 1 1/2" Uniseal works for 1 1/2" PVC pipe - the OD of the pipe is 1.9". Wet the seal before trying to slide the pipe into it. It's tight but that's the whole idea.
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