Product Details

The Pondmaster® / Supreme / Supreme Hydroponics - AP-Series air pumps have been designed to satisfy the requirements of a multitude of water-related application. These beautifully designed, environmentally friendly pumps can be used for:

• Oxygenating Outdoor Ponds and Water Gardens
• De-Icing Outdoor Installations During Harsh Winters
• Oxygenating Indoor Water Features
• Aerating Single or Multiple Aquarium or Terrarium Tanks
• Great for hydroponics and aquaponics use
• Great for winter aerating and keeping a hole open. Use all year long.
Instruction Manual .PDF
• 1 Year Limited Manufacturer's Warranty

All AP-Series air pumps operate on standard 115V AC electric and come with 6' power cords. They have been designed to operate efficiently with a motor that is non-oil lubricated.

For outdoor applications, it is recommended that the water resistant ABS plastic unit be enclosed with allowance for air circulation to protect it from the elements.


  • Item Number: 04240 / 04540 / 40540
  • Maximum water depth: 10 feet
  • Dimensions: 11"L x 6.5"W x 7"H
  • Power Cord: 6ft Long
  • Air Flow: 2900 Cubic inches/minute / 1.67 CFM
  • Pressure: 5.66 psi
  • Noise level: 40 dba (varies based on load)
  • Power Usage: 40 Watts
  • Hose Size: 5/8" I.D. (Tubing not Included)

Whats in the box: (1) AP40 Air pump with 6ft long power cord, (1) 6-1/2" Long Air Diffuser - Has 5/8" Barb for airline to connect to air pump and 12 (non-adjustable or closable) barbed outlets to optionally connect 1/4" ID tubing, (1) rubber coupler, (2) clamps and instructions.

Product Reviews

5 stars based on 1 review 
North central Washington State
Aeration For My Waterfall Pond This AP-40 aerator works perfectly in my waterfall pond which is about 15 x15 and 4 feet deep in the middle. I am using the supplied diffuser and approximately 15 feet of 3/4 inch drip irrigation hose. I attached the diffuser to a rock with zip ties as described in the instructions. I have the have the unit tucked in a bush next to the pond. I have been running it once a week from 11 AM to 6 PM off a timer. The results are crystal clear water that two gold fish seem to be enjoying!
Pros:Easy setup, excellent aeration from 4-5 feet-adequately covering my 15 x 15 waterfall pond
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Estimated Delivery Date

All of our in-stock products usually ship the same or next business day. The table below will show you an estimated* date your order will arrive. See special notes below

Shipping Method Approximate Processing Time Approximate Shipping Time Estimated Delivery Date
Eco-Saver Shipping 1-3 business days if ordered by 12:00 Noon EST 2-10 Business Days
Ground Service Same to Next day if ordered by 1:00 PM EST 2-7 Business Days
3-day Select Same day if ordered by 1:00 PM EST 3 Business Days
2nd Day Ai Same day if ordered by 1:00 PM EST 2 Business Days
Next Day Air Same day if ordered by 1:00 PM EST 1 Business Day
Next Day Air Saver Same day if ordered by 1:00 PM EST 1 Business Day by End of Day
UPS Standard - Canada Within 24 to 72 hours 5-10 Business Days

* Delivery dates are estimates only and can vary due to backorders, order processing delays, payment information, customs clearance, and various shipping delays that may be out of our control. Please refer to the specific product page which will show additional information, as some items may require additional shipping time or ship directly from our suppliers. After we receive your order, an order confirmation email is sent automatically from within our website which will show stock status for the item(s) on your order. Business days are Monday - Friday with Holidays excluded. When your order ships, we add your e-mail address into the UPS software which will send you tracking information, so you can track shipment status online, anytime! Here is a link to our complete shipping information including a UPS transit map: Click Here