• Aquaculture • Hydroponics •
Ponds • Aquariums
Fish Stock • Fish Food • Advanced Filtration Systems •
Commercial Grade Air & Water Pumps • And More!
The Better Bulkhead Fitting Alternative
are used to attach pipe to just about any type of container.
They can be used in place of expensive bulkhead fittings in
most situations. The most common use is on curved surfaces
such as storage drums, buckets or even other pipes.
We sell more Uniseals on ebay than any other seller. We work hard to offer you the lowest prices, fastest shipping and highest level of customer support available in the industry. Shipping is $4.99 for the first Uniseal and free
for additional ones! In other words you'll pay
only $4.99 shipping regardless of how many you buy.
Simply use the "add to cart" function to place as many
different uniseals into your cart from us as you would like,
and then checkout when you are ready.
NOTE: Uniseals are provided in sizes intended for standard schedule 40 pipe (common household plumbing pipe). For example, a standard 2" schedule 40 PVC pipe requires a 2" Uniseal. We recommend using a hole saw for cutting holes where a Uniseal will be placed. After cutting the hole, remove any fragments of material left behind to ensure a good, watertight seal. Below are the hole sizes required for each individual uniseal size.
3/16" Uniseal requires 0.3" hole saw and fits 3/16" ID pipe or tube with 0.250" OD
1/4" Uniseal requires 0.5" hole saw and fits 1/4" ID pipe or tube with 0.375" OD
3/8" Uniseal requires 1" hole saw and fits 3/8" ID pipe or tube with 0.675" OD
1/2" Uniseal requires 1.25" hole saw and fits 1/2" ID pipe or tube with 0.840" OD
3/4" Uniseal requires 1.25" hole saw and fits 3/4" ID pipe or tube with 1.050" OD
1" Uniseal requires 1.75" hole saw and fits 1" ID pipe or tube with 1.315" OD
1" 1/4 Uniseal requires 2" hole saw and fits 1 1/4" ID pipe or tube with 1.660" OD
1" 1/2 Uniseal requires 2.5" hole saw and fits 1 1/2" ID pipe or tube with 1.900" OD
2" Uniseal requires 3" hole saw and fits 2" ID pipe or tube with 2.375" OD
3" Uniseal requires 4" hole saw and fits 3" ID pipe with 3.500" OD
4" Uniseal requires 5" hole saw and fits 4" ID pipe with 4.500" OD
6" Uniseal requires 7" hole saw and fits 6" ID pipe with 6.625" OD
OD = Outside Dimension of pipe/tube
ID = Inside Dimension of pipe/tube
Allied Aqua is a
Limited Liability Company registered in the state of Missouri
and based in Smithville, MO (just a few miles north of Kansas
City). Our staff members have over 40 years of combined
experience in aquaculture, aquaponics, hydroponics, pond/lake
management, the aquarium industry and related fields. We
maintain our own production scale aquaculture and hatchery
facilities on-site, using the same products we sell. In other
words, we don't just sell these products, we actually use them,
and do so on a daily basis! We have thoroughly tested the
products we offer, to make sure they meet our own high
standards. When you have an item specific question or need
help/support with its actual use, you can be confident you'll
get accurate and relevant assistance from our friendly and