Specifications of the Blue Diamond ET Series Air Pumps:

Performance 30 to 250 l/min flow

• Green drive technology – energy efficient motors low power consumption
• Specially formulated diaphragm material for extended life
  Flow rate up to 8 liter/hr
• Due to no wearing parts no reduction in performance
• Robust and compact construction – weatherproof
• Easy to service with competitively priced rebuild kits Link: 
• Suited to intermittent and continuous duty applications
• Whisper quiet operation as low as 35dB
• Simple maintenance - replacement diaphragms readily available on this site.
• Grounded 18 gauge 5' 3" long power cord.
• Main body made of cast aluminum alloy.   

The Blue Diamond ET Series Air Pumps can be used for Aquariums, Ponds and certain Septic applications. Various specifications apply:

The ET80 is a 85 watt pump that produces 80 liters per minute or 2.83 CFM at .15 bar Connection - plain horizontal 18.0 mm (.71") O.D. connection. Also supplied with thread-on barb 12.0 mm (.47") O.D

The ET series is guaranteed for 18 months.  This warranty does not including the diaphragm kits which are a replaceable, wearable part, or situations where the manufacturer concludes that the pump was misused.   Warranties are at the discretion of the manufacturer.