Kasco® Replacement Impellers / Props Maximum Head Height_13 Feet Ammonia is the leading killer

Ammonia is the leading killer of tropical fish

Recommended for 100 lpm - 200 lpm air pumps

and resistant to UV and heat exposure

Reduces problem causing nitrate and phosphate

Kasco® Replacement Impellers / Props Maximum Head Height_13 Feet Ammonia is the leading killer431150 Impeller for Model 3400J 431170 Impeller for Model 4400J 284353 Impeller for 3 HP J Old number was 840360 284352 Impeller for 2 HP J Old number was 841120 284355 Impeller for 5 HP J 284357 Impeller for 7 HP J 820505 8400 3 blade black prop trimmed (A Units) Instructions for 2 HP, 3 HP, 5 HP, and 7 HP J Impellers When you order a 2 HP 7 HP impeller now, it will now be a retrofit kit due to an improvement design change. The following instructions