Kasco 4400AF 1 HP Surface Aerator 200 ft Cord – Floating Pond & Lake Aeration System with Float & Screen
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Description
The Kasco 4400AF is a 1 HP floating surface aerator built for functional, high-volume aeration of ponds up to approximately 1 acre. Where J-Series fountains create decorative spray patterns, the 4400AF uses a single open propeller to aggressively push water into the air as a wide crown — maximizing surface contact with the atmosphere for rapid oxygen transfer and gas exchange. Kasco rates the AF series at up to 3.0 lbs of O2 per HP per hour (SAE standard), making it one of the most efficient surface aerator designs in its horsepower class.
This listing is the 120V 4400AF with 200 ft SJTOW underwater-rated power cord. The unit floats at the surface, anchors with two mooring ropes, and plugs into a GFCI-protected 120V outlet. A C-25 control panel with 24-hour timer is available separately for automated operation cycles. The 240V version of this unit is the 4400HAF (5.7A, available with cord lengths up to 400 ft).
Why Choose the Kasco 4400AF Surface Aerator?
- Maximum functional aeration — not decorative. The 4400AF's open-propeller design creates a wide, low-profile water crown rather than a tall spray column. This maximizes surface area contact with the atmosphere, producing the highest oxygen transfer rate possible from a 1 HP floating unit. Ideal for ponds with heavy fish loads, algae pressure, or heat-stress risk.
- Up to 3.0 lbs of O2 per HP per hour (SAE). Kasco rates the AF series at this oxygen transfer efficiency — among the highest in the surface aerator category for its power draw. Running 24/7 at 11.3 amps (120V), the operating cost is significantly lower than emergency aeration alternatives.
- 19-inch minimum operating depth. Operates shallower than nearly any competing 1 HP surface aerator, making it viable for shallow retention ponds, lagoons, and aquaculture tanks where deep-deployment aerators would be impractical.
- Stainless steel housing with sacrificial zinc anode. The motor is housed in corrosion-resistant stainless steel and protected by an easily replaceable zinc anode. Rated for freshwater, brackish, and full saltwater applications.
- Hard-face mechanical seal + flood oil lubrication. The motor uses a hard-face internal mechanical seal for leak protection and is flood oil lubricated for superior heat dissipation during continuous heavy-duty operation. Unlike Kasco's J-Series decorative fountains (which are oil-free), the AF series oil-filled design is optimized for around-the-clock industrial aeration cycles.
- Clog-resistant single open propeller. Handles debris-laden ponds, aquaculture systems with feed and waste, and stormwater retention ponds without jamming.
- ETL listed to UL and CSA standards — required for many commercial, municipal, and HOA applications.
- Made in the USA — Kasco Marine, Prescott, Wisconsin.
What's Included
- Kasco 4400AF 1 HP 120V surface aerator motor unit
- UV-resistant thermoplastic float
- 200-foot SJTOW underwater-rated power cord
- Two (2) 50-foot braided nylon mooring ropes
- Sacrificial zinc anode (replaceable)
- Bottom protective screen [verify with supplier — standard AF units ship with and without screen as separate SKUs; confirm this listing includes screen]
- Assembly hardware
- Owner's manual and assembly instructions
Complete Technical Specifications
| Specification | Detail |
|---|---|
| Model | 4400AF (120V) — 200 ft cord version |
| Horsepower | 1 HP |
| Voltage | 120V single-phase, 60 Hz (this listing) |
| Running Amps | 11.3A at 120V [verify with Kasco spec sheet] |
| Oxygen Transfer Rate | Up to 3.0 lbs O2 per HP per hour (SAE standard) |
| Pond Size | Up to approximately 1 acre (surface area) |
| Minimum Operating Depth | 19 inches |
| Power Cord | 200 feet — SJTOW underwater-rated |
| Float | UV-resistant thermoplastic |
| Mooring Ropes | Two (2) 50-foot braided nylon mooring ropes |
| Motor Housing | Stainless steel, corrosion-resistant |
| Motor Lubrication | Flood oil lubricated (oil-filled) — hard-face mechanical seal |
| Zinc Anode | Sacrificial zinc anode included (replaceable) |
| Corrosion Resistance | Suitable for freshwater, brackish, and saltwater |
| Control Panel | Optional — C-25 (120V, GFCI, 24-hr timer) sold separately |
| 240V Version | 4400HAF (5.7A at 240V; cord lengths up to 400 ft available) |
| Safety Certification | ETL listed to UL and CSA standards |
| Warranty | 2-year manufacturer warranty |
| Manufactured | Kasco Marine — Prescott, Wisconsin, USA |
Kasco AF Series Surface Aerator Comparison
| Model | HP | Voltage | Amps | Pond Size | O2 Transfer | Best For |
|---|---|---|---|---|---|---|
| 2400AF | ½ HP | 120V | ~6A | Up to ½ acre | 3.0 lbs/HP/hr | Smaller ponds, lower-cost installations |
| 3400AF | ¾ HP | 120V | ~9A | Up to ¾ acre | 3.0 lbs/HP/hr | Mid-size ponds, transitional applications |
| 4400AF (this page) | 1 HP | 120V | 11.3A | Up to 1 acre | 3.0 lbs/HP/hr | Most popular commercial aeration size; 200 ft cord |
| 4400HAF | 1 HP | 240V | 5.7A | Up to 1 acre | 3.0 lbs/HP/hr | Same coverage, lower amp draw; longer cord options (up to 400 ft) |
| 8400AF | 2 HP | 240V | ~11A | Up to 2 acres | 3.0 lbs/HP/hr | Large ponds; high fish density; industrial applications |
Surface Aerator vs Decorative Fountain — Which Do You Need?
| Feature | 4400AF Surface Aerator | 4400JF Decorative Fountain |
|---|---|---|
| Primary purpose | Maximum oxygen transfer and aeration | Decorative display + surface aeration |
| Water pattern | Wide low-profile crown — no spray column | 5 interchangeable nozzle patterns, 4–10 ft high |
| O2 transfer | Up to 3.0 lbs O2/HP/hr (SAE) | Lower — decorative splash pattern less efficient |
| Visual impact | Functional only — minimal decorative appeal | High — 5 spray patterns, optional LED lights |
| Best applications | Aquaculture, fish health, algae control, industrial, wastewater | Residential ponds, HOA lakes, decorative installations |
| LED lights | Available as optional add-on | Available as optional add-on |
| Control panel | Optional add-on (C-25 or C-220) | Optional add-on (C-25 or C-85) |
Frequently Asked Questions
How many lbs of oxygen per hour does the Kasco 4400AF produce?
Kasco rates the AF series at up to 3.0 lbs of O2 per HP per hour under SAE (Standard Aeration Efficiency) test conditions. For the 1 HP 4400AF, that means up to 3.0 lbs of dissolved oxygen transferred per hour of operation at rated output. This is a normalized efficiency rating that allows comparison across manufacturers and HP classes, and it makes the Kasco AF series one of the most oxygen-efficient surface aerators in its category.
The actual oxygen transfer in your pond will vary with water temperature, salinity, existing DO levels, and pond shape — but the SAE rating is your best basis for comparing aerators when selecting equipment.
What is the difference between the 4400AF surface aerator and the 4400JF decorative fountain?
Both are 1 HP Kasco units, but they serve fundamentally different purposes:
- 4400AF Surface Aerator: Uses a single open propeller to fling water into the air as a wide, aggressive crown. No decorative spray pattern. The goal is maximum water surface contact with the atmosphere for the highest possible oxygen transfer rate. Chosen by aquaculture operations, municipalities, fish farmers, and anyone who needs aeration effectiveness above all else.
- 4400JF Decorative Fountain: Five interchangeable nozzles produce varying spray patterns (4–10 ft high). Aesthetically attractive, with optional LED lighting. Provides surface aeration through splash, but the spray pattern design prioritizes visual appeal over pure O2 transfer rate. Chosen for residential ponds, HOA lakes, and decorative installations.
If your primary goal is water quality, fish health, or algae control — choose the 4400AF. If you want a centerpiece water feature that also aerates — choose the 4400JF.
Does the 4400AF come with a control panel and timer?
No. The standard 4400AF ships without a control panel. The unit must be connected to a GFCI-protected 120V outlet to operate. For automated on/off scheduling, you need to add a control panel separately:
- C-25 Control Panel (120V units): plug-and-go GFCI protection, 24-hour programmable timer. Recommended for all 120V AF installations — provides circuit protection and allows you to schedule aeration cycles.
- C-220 Control Panel (240V/4400HAF units): equivalent functionality for the 240V version.
Note: Unlike the C-25 used with Kasco's J-Series decorative fountains, the AF series control panels do not include a photocell-controlled outlet for lighting — they are purely for on/off/timer control of the aerator. Call us to add a control panel to your order: (765) 508-4352.
What is the minimum water depth required?
The 4400AF can operate in water as shallow as 19 inches. This is significantly shallower than most competing 1 HP surface aerators and makes it suitable for shallow retention ponds, aquaculture tanks, shoreline installations, and agricultural lagoons where deeper-deployment equipment would be impractical.
How does the float and screen protect against clogging?
The 4400AF's thermoplastic float keeps the motor and propeller at the correct operating depth at the surface — the propeller does not run near the bottom, so it does not stir up bottom muck or draw in heavy sediment. The optional bottom screen (available separately if not included in this listing — verify with us) prevents floating debris, aquatic vegetation, and large particles from entering the propeller area. The open-propeller design itself also handles light debris better than enclosed-impeller designs used in submersible aerators.
Is the 4400AF suitable for saltwater or aquaculture applications?
Yes. The 4400AF is built for demanding environments. The motor housing is stainless steel, and each unit includes a sacrificial zinc anode that protects against galvanic corrosion in saltwater, brackish, and hard-water applications. The anode is designed to be replaced when approximately 50% depleted — an annual inspection is recommended. ETL listed to UL and CSA standards. In aquaculture applications, the 4400AF provides both oxygenation and water circulation, supporting higher fish density and feed distribution at the surface.
Can the 200-foot power cord be extended?
No. The power cord cannot be extended. Adding extension cord voids the warranty and the ETL approval, and creates voltage drop that reduces motor performance and can cause overheating. The 200-foot SJTOW cord is factory-rated as a complete electrical system. If you need more than 200 feet of reach, the 240V 4400HAF model is available with cord lengths up to 400 feet. Call us to discuss your installation requirements: (765) 508-4352.
What maintenance does the 4400AF require?
The 4400AF is a low-maintenance unit designed for 24/7 continuous operation. Recommended maintenance:
- Motor housing: Clean once or twice per year by removing from the water and rinsing with clean water
- Sacrificial zinc anode: Inspect at the start of each season; replace when approximately 50% depleted (replacement anodes available from Kasco dealers)
- Bottom screen (if equipped): Inspect and clean periodically if debris accumulates
- GFCI outlet: Test monthly per standard practice
- Power cord: Inspect annually for abrasion, kinks, or damage
The 2-year warranty covers motor defects in materials and workmanship. After the warranty period, Kasco offers motor rebuilding service at their Prescott, Wisconsin facility.
Why Buy from Pond Pro Direct?
- Authorized Kasco Marine dealer — full 2-year manufacturer warranty support.
- Full Kasco AF Series Available — 2400AF (½ HP), 3400AF (¾ HP), 4400AF (1 HP), 4400HAF (1 HP/240V), 8400AF (2 HP). Call us for sizing guidance: (765) 508-4352.
- C-25 and C-220 control panels available — add a control panel to any AF series order for automated aeration scheduling and GFCI protection.
- Price Match Guarantee — found a lower price from an authorized Kasco dealer? We'll beat it by $50 on orders over $2,000.
- 30-Day Return Period. Call or text (765) 508-4352, Monday–Friday, 9 AM–5 PM EST.
The Kasco 4400AF delivers up to 3.0 lbs of O2 per HP per hour (SAE), operates in as little as 19 inches of water, handles freshwater through full saltwater environments, and runs 24/7 on 11.3 amps at 120V — all backed by a 2-year warranty and manufactured in Prescott, Wisconsin.
Questions about sizing for your pond, comparing 120V vs 240V, or adding a control panel? Call or text (765) 508-4352 — Monday through Friday, 9 AM to 5 PM EST.
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