Uniseal Bulkhead Alternative hydroponic aquaponic aquarium aquaculture uniseals

Allied Aqua
Aquaponics • Aquaculture • Hydroponics • Ponds • Aquariums
Live Fish Stock • Fish Food • Advanced Filtration Systems • Commercial Grade Air & Water Pumps • And More!

The Original Uniseal
The Better Bulkhead Fitting Alternative

Uniseals 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.

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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 knowledgeable crew.

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