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This listing is intended for resellers only. Buy full skids of our best-selling Blue Diamond ET Series Air Pumps and save big with FREE SHIPPING and volume pricing! No other discounts may be applied to this purchase.
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.
- Green Drive Technology – Energy efficient motors with low power consumption
- Suitable for intermittent and continuous duty applications
- Simple, Effective Maintenance – Replacing diaphragm returns pump to full performance
- Specially formulated diaphragm material for extended life
- Pumps 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.
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
||30W @ 0.14 bar
||40Lpm (1.41cfm) @ 0.15 bar
||14mm Slip; 10mm Barb
||8.66L x 6.10W x 7.48H
Grounded 18 Gauge, 5' 3" Long