Kasco Surface Aerators dramatically push high volumes of water into the air, increasing the overall health of your pond or lake and keeping it thoroughly mixed. Introducing oxygen and water movement breaks up stratification, eliminates odor, discourages algae growth, and promotes a healthy aquatic environment. These self-contained units deliver up to 3.0 lbs of O2 per horsepower per hour of operation, making Kasco Surface Aerators among the most dependable and efficient units on the market. Available in 1/2 HP through 5 HP for ponds, lakes, golf-course water hazards, fish farms, wastewater treatment, and commercial installations. Features Up to 3.0 lbs O₂ per HP per hour — among the highest oxygen-transfer efficiency in the industry, ideal for fish farms, lake management, and wastewater applications Available in 1/2, 3/4, 1, 2, 3, and 5 HP with cord lengths from 50 to 400 feet to match installation distance to power source 120V single-phase, 208-240V single-phase, and 208-240V three-phase options across the lineup for residential through commercial-grade installations Sealed, water-cooled motor in stainless-steel housing for continuous-duty year-round operation Breaks up thermal stratification from the surface down, mixing oxygenated water throughout the entire water column to prevent fish kills, anaerobic zones, and algae blooms Reduces odor, dissolved CO₂, and ammonia by maximizing surface-area gas exchange between the water and atmosphere Float-mounted, self-deploying — units arrive ready to install with mooring lines and electrical connections matched to the configuration ordered Compatible with Kasco control panels for thermostat, timer, and GFCI-protected automation (sold separately) Optional WaterGlow LED lighting kits turn aerators into evening water-feature displays (sold separately) Warranty: 2 years on 1/2, 3/4, and 1 HP units; 3 years on 2, 3, and 5 HP units Specifications Available Horsepower 1/2 HP, 3/4 HP, 1 HP, 2 HP, 3 HP, 5 HP Voltage Options 120V single-phase / 208-240V single-phase / 208-240V three-phase Amps 1/2 HP 120V: 5.7 A · 3/4 HP 120V: 7.0 A · 3/4 HP 240V: 3.5 A · 1 HP 120V: 9.1 A · 1 HP 240V: 4.5 A · 2 HP 240V 1φ: 9.0 A · 2 HP 240V 3φ: 7.2 A · 3 HP 240V 1φ: 10.7 A · 5 HP 240V 1φ: 18 A · 5 HP 240V 3φ: 18 A Cord Lengths Available 50, 75, 100, 150, 200, 250, 300, 400 ft (varies by model) Minimum Operating Depth 1/2 – 3/4 HP: 17.5" / 1 HP: 19" / 2 HP: 20" / 3 HP: 24" / 5 HP: 26" Oxygen Transfer Rate Up to 3.0 lbs O₂ per HP per hour (varies by HP, water temperature, and dissolved-oxygen baseline) Water Pattern Tall vertical V-shaped spray; aeration footprint scales with HP Construction Stainless-steel motor housing, sealed water-cooled motor, polyethylene flotation collar Compatible Control Panels C-25 (1/2 – 1 HP 120V) / C-220 (3/4 – 2 HP 240V 1φ) / C-230 (3 – 5 HP 240V 1φ) / CA-3235 (3-phase) Warranty 2 years on 1/2, 3/4, and 1 HP / 3 years on 2, 3, and 5 HP What's Included Kasco Surface Aerator unit with stainless-steel motor housing Polyethylene flotation collar (matched to HP class) Power cord (length per selected configuration) Stainless-steel mooring eyelets for anchoring Owner's manual + warranty card Sizing Guidance Choose your HP based on water surface area, depth, and the aeration goal (cosmetic versus full water-column mixing): 1/2 HP — small backyard ponds up to 1/4 acre with depths under 8 ft 3/4 HP — ponds up to 1/2 acre, lake coves, golf-course water hazards 1 HP — ponds up to 1 acre, small lakes, fish-farm troughs 2 HP — lakes 1–2 acres, commercial fish farms, larger golf-course ponds 3 HP — lakes 2–3 acres, wastewater lagoons, industrial cooling ponds 5 HP — lakes 3–5+ acres, wastewater treatment, commercial aquaculture, mine tailings Cord length should reach from the aerator location to the nearest GFCI-protected outlet without splices or extension cords. Always install on a GFCI-protected circuit. For installations beyond 200 feet from shore, consider 208-240V single-phase or 3-phase units to minimize voltage drop. Available Configurations This product is available in 59 configurations spanning Horsepower × Voltage/Phase × Cord Length: 1/2 HP (4 configurations) 1/2 HP 120V (50' cord) — MPN 2400AF050 1/2 HP 120V (100' cord) — MPN 2400AF-100 1/2 HP 120V (150' cord) — MPN 2400AF-150 1/2 HP 120V (200' cord) — MPN 2400AF-200 3/4 HP (11 configurations) 3/4 HP 120V (50' cord) — MPN 3400AF050 3/4 HP 120V (100' cord) — MPN 3400AF-100 3/4 HP 120V (150' cord) — MPN 3400AF-150 3/4 HP 120V (200' cord) — MPN 3400AF-200 3/4 HP 208-240V Single Phase (50' cord) — MPN 3400HAF050 3/4 HP 208-240V Single Phase (100' cord) — MPN 3400HAF-100 3/4 HP 208-240V Single Phase (150' cord) — MPN 3400HAF-150 3/4 HP 208-240V Single Phase (200' cord) — MPN 3400HAF-200 3/4 HP 208-240V Single Phase (250' cord) — MPN 3400HAF-250 3/4 HP 208-240V Single Phase (300' cord) — MPN 3400HAF-300 3/4 HP 208-240V Single Phase (400' cord) — MPN 3400HAF-400 1 HP (11 configurations) 1 HP 120V (50' cord) — MPN 4400AF050 1 HP 120V (75' cord) — MPN 4400AF075 1 HP 120V (100' cord) — MPN 4400AF-100 1 HP 120V (150' cord) — MPN 4400AF-150 1 HP 120V (200' cord) — MPN 4400AF-200 1 HP 208-240V Single Phase (100' cord) — MPN 4400HAF-100 1 HP 208-240V Single Phase (150' cord) — MPN 4400HAF-150 1 HP 208-240V Single Phase (200' cord) — MPN 4400HAF-200 1 HP 208-240V Single Phase (250' cord) — MPN 4400HAF-250 1 HP 208-240V Single Phase (300' cord) — MPN 4400HAF-300 1 HP 208-240V Single Phase (400' cord) — MPN 4400HAF-400 2 HP (14 configurations) 2 HP 208-240V Single Phase (50' cord) — MPN 8400AF050 2 HP 208-240V Single Phase (100' cord) — MPN 8400AF-100 2 HP 208-240V Single Phase (150' cord) — MPN 8400AF-150 2 HP 208-240V Single Phase (200' cord) — MPN 8400AF-200 2 HP 208-240V Single Phase (250' cord) — MPN 8400AF-250 2 HP 208-240V Single Phase (300' cord) — MPN 8400AF-300 2 HP 208-240V Single Phase (400' cord) — MPN 8400AF-400 2 HP 208-240V 3-Phase (50' cord) — MPN 2.3AF050 2 HP 208-240V 3-Phase (100' cord) — MPN 2.3AF-100 2 HP 208-240V 3-Phase (150' cord) — MPN 2.3AF-150 2 HP 208-240V 3-Phase (200' cord) — MPN 2.3AF-200 2 HP 208-240V 3-Phase (250' cord) — MPN 2.3AF-250 2 HP 208-240V 3-Phase (300' cord) — MPN 2.3AF-300 2 HP 208-240V 3-Phase (400' cord) — MPN 2.3AF-400 3 HP (7 configurations) 3 HP 208-240V Single Phase (50' cord) — MPN 3.1AF050 3 HP 208-240V Single Phase (100' cord) — MPN 3.1AF-100 3 HP 208-240V Single Phase (150' cord) — MPN 3.1AF-150 3 HP 208-240V Single Phase (200' cord) — MPN 3.1AF-200 3 HP 208-240V Single Phase (250' cord) — MPN 3.1AF-250 3 HP 208-240V Single Phase (300' cord) — MPN 3.1AF-300 3 HP 208-240V Single Phase (400' cord) — MPN 3.1AF-400 5 HP (12 configurations) 5 HP 208-240V Single Phase (100' cord) — MPN 5.1AF-100 5 HP 208-240V Single Phase (150' cord) — MPN 5.1AF-150 5 HP 208-240V Single Phase (200' cord) — MPN 5.1AF-200 5 HP 208-240V Single Phase (250' cord) — MPN 5.1AF-250 5 HP 208-240V Single Phase (300' cord) — MPN 5.1AF-300 5 HP 208-240V Single Phase (400' cord) — MPN 5.1AF-400 5 HP 208-240V 3-Phase (100' cord) — MPN 5.3AF-100 5 HP 208-240V 3-Phase (150' cord) — MPN 5.3AF-150 5 HP 208-240V 3-Phase (200' cord) — MPN 5.3AF-200 5 HP 208-240V 3-Phase (250' cord) — MPN 5.3AF-250 5 HP 208-240V 3-Phase (300' cord) — MPN 5.3AF-300 5 HP 208-240V 3-Phase (400' cord) — MPN 5.3AF-400 Documentation Kasco Surface Aerator 2026 Pricing & Sizing Sheet Kasco Surface Aerator 2026 Product Flyer Kasco Surface Aerator Owner's Manual (1/2 – 1 HP) Kasco Surface Aerator Owner's Manual (2 – 5 HP) Kasco Surface Aerator Pond Study (Performance Data)
