Save even more when you buy Blue Diamond air pumps in bulk! Each bulk case has a savings of at least $10 per pump compared to buying the pumps individually from us!
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 for low power consumption
Suitable for intermittent and continuous duty applications
Specially formulated diaphragm material for extended life
Made in in China
UL and CE approved
Connections Each pump includes a slip fitting and an optional barb adapter in specified sizes. A 3/4" rubber elbow is also included. On all models where the brass is used to connect to a septic pump alarm, the brass is 4mm.
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.
PGP Tip 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
30Lpm @ 0.15 bar
14mm (0.55") Slip; 10mm (0.39") Barb
8.2" x 5.9" x 7.0"
40Lpm @ 0.15 bar
8.7" x 6.1" x 7.5"
60Lpm @ 0.17 bar
18mm (0.71") Slip; 12mm (0.47") Barb
8.0" x 6.5" x 6.0"
80Lpm @ 0.1 bar
8.3" x 7.3" x 6.7"
100Lpm @ 0.1 bar
9.4" x 7.7" x 7.0"
120Lpm @ 0.1 bar
10.4" x 8.4" x 7.8"
150Lpm @ 0.15 bar
10.0" x 7.9" x 8.7"
200Lpm @ 0.15 bar
10.0" x 7.9" x 8.7"
Note: The Blue Diamond ET series aerators are designed for relatively shallow water. The ET Series pumps have a maximum pressure threshold of 0.25 bar which is approximately 8' of water depth. Therefore they should probably only be used in water up to 7' deep.