Freshwater

Difficulty: easy

Fits: Ultramax 1000, Ultramax 1500 +1

For tanks of ≤ 500 l

For tanks of 60–120 l

Difficulty: advanced

Fits: ASAP 300, ASAP 500 +1

Fits: NSF-C200L, NSF-C350L +5

Difficulty: easy

For tanks of ≤ 250 l

For tanks of ≤ 80 l

For tanks of ≤ 200 l

Difficulty: medium

For tanks of ≤ 250 l

Power 4.4 W

For tanks of ≤ 350 l

Difficulty: easy

For tanks of 100–700 l