EW‑603 – transparent bucket-type pre-filter

This transparent prefilter from SunSun is for aquarists who run an external filter and want to catch debris before it reaches the main unit. With a 2.7 L chamber and a clear housing, it lets you check the condition of the sponges and the water flow without opening the device.

Why it matters

• Mechanical pre-filtration: solid particles are trapped in the prefilter, which reduces the load on the main filter and keeps its media cleaner for longer.
• Visible media: the clear housing shows the state of the internal elements and how dirty the filter media are, so you know when maintenance is due.
• Three sponge grades plus bioballs: the sponges handle particle capture and support bacterial colonies, while the bioballs add a dedicated biological filtration stage.
• Durable build: the body, lid and other plastic parts are made of ABS, and the seals are made of rubber with polyolefin-based chains for elasticity and durability.
• Secure closure and service valves: four clamps press the lid down to keep the housing sealed, and the valves with 16/22 mm hose ports can be detached together with the hoses for cleaning.

Specifications

• Capacity: 2.7 L
• Dimensions: 29 x 13 x 13 cm
• Weight: 0.9 kg
• Designed for filter flow rate: 250 to 2500 l
• Hose connection diameter: 16/22

What it works with

The prefilter is intended for aquarium external filtration systems in the 250 to 2500 l flow range. It is installed on the intake side of the main filter and works alongside the sponges and bioballs in the prefilter itself, so the main filter does not need to be opened for routine checks.