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Hakko Air Pumps are high volume diaphragm pumps designed for a variety of low-pressure applications. Koi pond aeration, large aquarium aeration and earth pond destratification are only a few of the many applications for Hakko pumps. Hakko pumps are compact, affordable, energy-efficient and very, very quiet (less than 38 decibels!)! These are the best large air pumps available today.
18 month warranty through the manufacturer.

Item # Description Output Max Draw @ 115v Ship Weight Price
HK-25L Hakko HK25 Air Pump 1.60 @ 1.85 Psi (4.15' depth) 24w 10 lbs. $129.89
HK-40L Hakko HK40 Air Pump 1.60 @ 1.85 Psi (4.15' depth) 40w 13 lbs. $179.89
HK-60L Hakko HK60 Air Pump 2.25 @ 2.13 Psi (4.80' depth) 55w 15 lbs. $219.89
HK-80L Hakko HK80 Air Pump 2.90 @ 2.13 Psi (4.80' depth) 81w 15 lbs. $269.89
HK-100L Hakko HK100 Air Pump 3.55 @ 2.85 Psi (4.80' depth) 98w 22 lbs. $399.89
HK-120L Hakko HK120 Air Pump 4.10 @ 2.85 Psi (4.80' depth) 120w 22 lbs. $459.89

Tetratec Deep Water Air Pump is designed for use in deep water. This small, compact pump is built with a strong diaphragm for a long life. The Tetra Deep Water Pump is designed for running air stones or other air applications and is backed with Tetra's Lifetime Limited Warranty. Ship weight 2 lbs.

Item # Description Depth to Airstone Ratios Outlets Price
4679826072 Tetratec DW 12 24" - 1 airstone, 12" - 2 airstones 1 Discontinued
4679826073 Tetratec DW 18 48" - 1 airstone, 18" - 4 airstones 1 Discontinued
4679826074 Tetratec DW 24-2 96" - 1 airstone, 18" - 6 airstones 2 Discontinued
4679826075 Tetratec DW 96 96" - 2 airstones, 18" - 7 airstones 1 Discontinued
4679826076 Tetratec DW 96-2 96" - 3 airstones, 18" - 12 airstones 2 Discontinued