Bulk head set for glass or acrylic aquariums.

Aquarium requires drilling to fit these items.

One drain fitting with removeable grid (has surface suction extractor) hole size required 50mm.

one return fitting with a choice of either a duck-bill or circulating flow nozzle. Hole size required 25mm

both fittings have barbs for flexible hose.

Drain fitting has a chamber with a small hole at the top to keep the gurgling noise to a minimum.