When maintaining an aquarium, setting a filtration system is a top concern. Because it is such an important part, some people opt for a central system for filtration, especially when they have more than one tank to take care of.

However, the challenge for a central system for filtration is getting the water in one place, such as a sump, which is a pit wherein water gets collected. To make this possible, a Double-Threaded Bulkhead Fitting from Pet Store should be used for each tank.

The Double-Threaded Bulkhead Fitting is designed to let water flow freely into the sump. Within piping systems, it is also used to distribute water to different outlets.

The Double-Threaded Bulkhead Fitting should be installed at the exact height where you want to keep the water level. Either end is threaded. Thus, either end can be used for screwing in a fitting. The connections are tight to avoid leaking. If you own small tanks, or if you want a slower water turnover rate, it is best to use the 0.5" fittings. Since there are a lot of varieties available in the market - both offline and online - it's important to get one made from high0quality materials which don't break easily even when under water pressure.