Bulkheads are used to seal your tank for plumbing on a sump. 

Strainers are used inside HOB Overflow boxes and inside the aquarium when you wanna keep livestock and particles out of the drain.   They will fit into a bulk head or PVC Elbow.

Loc-Line 3/4 inch Ball Socket Round Nozzle is a great solution for ending the Loc-Line output in your aquarium.  The round nozzle and flare are always the best solutions and look in your aquarium.

Loc-Line 3/4 inch Ball Socket Flexible Tube 6 inch is generally used as the main piece to enter the aquarium from your return from your sump.

Loc-Line 3/4 inch Ball Socket x MPT Connector is great for attaching to a 3/4" thread pvc water line to use the loc-line in your aquarium.

Loc-Line 3/4 inch Ball Socket Y Fitting  is a great solution for splitting loc-line plumbing into two seperate returns.

Loc-Line 3/4 inch x 3 inch Ball Socket Flare Nozzle  is a great solution for ending the Loc-Line output in your aquarium. 

Loc-Line 3/4" to 1/2" Ball Socket Adapter is used to attach 3/4" to inside diameter of loc-line product.

The Eshopps Auto Top Float Valve can be either hung on the side of a sump or attach through a drilled hole in the side of your sump.

Water level controller with only one sensor for nano aquariums or small  aquariums with up to 200 liters (55 USgal.)

Tunze Osmolator Universal 3155 is used to control the water level inside your aquarium.  Generally used as an auto-top off unit for evaporated water.

JBJ Auto Top Off (ATO) System A.T.O.—Automatic Top Off System Water Level controller Tired of lifting heavy buckets to refill sumps or tanks due to evaporation? There is finally a professional grade product that automates refilling...