The ATO system is easy to hang on to your aquarium sump, it can automatically fill and shut off inlet water, and fit a wide variety of positions and heights.

Features:
1, It works for tanks and sumps that have up to 5/8"(16mm) thick walls.
2, The range of water level from aquarium sump top is 0-20mm.
3, The bracket is made with high quality transparent PC material, durable and solid, no breaking.
4, It meets 1/4" tube, come with O-ring, don't leak.

Packing list:
1 x Float valve
1 x PC bracket
2 x Nylon screw