Blue Diamond Envir-o® ET Series Air Pump Complete System Kits

Blue Diamond


The Blue Diamond ET Series Air Pump Complete System Kits are set up for simple and quick installation. Each kit includes an air pump, along with the manifold (if required), weighted airline tubing and diffusers needed for pond aeration. 

Kit Pump Air Manifold Tubing Diffusers
ET30CS ET30 None 24' Length 8" Circular
ET40CS ET40 SC-2-3/8 (2-Outlet) (2) 24' Lengths (2) 12" Rods
ET60CS ET60 SC-2-3/8 (2-Outlet) (2) 24' Lengths (2) 24" Rods
ET80CS ET80 SC-4-3/8 (4-Outlet) (4) 24' Lengths (4) 8" Circular
ET100CS ET100 SC-4-3/8 (4-Outlet) (4) 24' Lengths (4) 8" Circular
ET120CS ET120 SC-4-3/8 (4-Outlet) 150' (4) 8" Circular

ET Series Air Pumps
Blue Diamond ET Series Air Pumps are versatile pumps that can be used in aquariums, ponds and certain septic applications. The weatherproof pump has a robust and compact construction, and the main body is constructed of cast aluminum alloy.

  • Energy-efficient Green Drive technology means low power consumption
  • Suitable for intermittent and continuous duty applications
  • Replacing diaphragms makes it simple to return pump to full performance
  • Specially formulated diaphragm material for extended life
  • Made in in China
Plain horizontal 18.0mm (0.71") O.D. outlet connection fits 3/4" I.D. tubing. A 3/4" rubber elbow is also included. Pump also comes with barbed fitting that threads into the interior of outlet to provide a 12.0mm (0.47") O.D. barb for 1/2" I.D. tubing. The SC-2-3/8 manifold adapts from 3/4" barbed fitting to two 3/8" barbed outlets. The SC-4-3/8 manifold adapts from 3/4" barbed fitting to four 3/8" barbed outlets.

2 Year Warranty
This warranty does not include the diaphragm kits, which are a replaceable, wearable part (typically replaced every 12-18 months). Warranties are at the discretion of the manufacturer as to whether the damage is due to misuse or to defect.

The most common problem with this and other larger air pumps is premature diaphragm tearing due to excessive back pressure. People don't tend to understand how much air the large sized pumps produce. If an air pump is powering too small of a diffuser or too few outlets, excessive back-pressure can occur. The solution is to add a tee with a ball valve or other "bleeder valve" so that excessive air can be bled off into the atmosphere. Start with the valve completely open and slowly close it until you have the maximum output from your air diffusers without unnecessary back pressure.

Model Startup Power Performance Outlet Noise Weight Dimensions
ET30 30W 25W 30Lpm @ 0.15 bar 14mm Slip; 10mm Barb 40dB 4.0kg 8.2" x 5.9" x 7.0"
ET40 55W 30W 40Lpm @ 0.15 bar 4.3kg 8.7" x 6.1" x 7.5"
ET60 85W 55W 60Lpm @ 0.17 bar 18mm Slip; 12mm Barb 45dB 6.0kg 8.0" x 6.5" x 6.0"
ET80 105W 75W 80Lpm @ 0.1 bar 7.0kg 8.3" x 7.3" x 6.7"
ET100 125W 80W 100Lpm @ 0.1 bar 8.5kg 9.4" x 7.7" x 7.0"
ET120 90W 90W 120Lpm @ 0.1 bar 9.5kg 10.4" x 8.4" x 7.8"

Note: The Blue Diamond ET series aerators are designed for relatively shallow water. They ET Series pumps have a maximum pressure threshold of 0.25 bar which is approx 8 foot of water depth. Therefore they should probably only be used in water up to 7' deep.

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