Description: Save even more when you buy Blue Diamond air pumps in bulk!Each bulk case has a savings of $10 per pump compared to buying the pumps individually from us. Note: The Blue Diamond ET series aerators are designed for relatively low pressure. Tubing should not exceed 130' and diffusers should only used in water up to 7' deep. Blue Diamond ETA Series Pumps Blue Diamond ETA Series Air Pumps with Alarm have primarily been used in the septic industry, but can be used in any application where it is important to be promptly notified when the air pump has failed to supply air to your aquarium, pond or septic application.Robust and Compact Construction - Weatherproof, cast aluminum alloy bodyGreen Drive Technology – Energy efficient motors with low power consumptionSuitable for intermittent and continuous duty applicationsSimple, Effective Maintenance – Replacing diaphragm returns pump to full performanceSpecially formulated diaphragm material for extended lifePumps made in in China Alarm SystemThe built-in alarm has a 3-position switch. Set the switch to "test" to hear the alarm and light. Always make sure the alarm is working properly before installation. Once installed, set the switch to "alarm" (flashing light and alarm sound) or "mute" (flashing light but no alarm sound) depending on your preference. Connections Most models come with two connection options. The ET30 and ET40 each have a plain horizontal 14.0mm (0.55") O.D. outlet connection fits tight on a 1/2" I.D. tubing or loosly with a 5/8" tubing. A rubber elbow is also included. Each pump also comes with barbed fitting that threads into the threaded interior of outlet to provide a 10.0mm (0.39") O.D. barb which fits well in 3/8" I.D. tubing.The ET60, ET80, ET100 and ET120 each have a plain horizontal 18.0mm (0.71") O.D. outlet connection fits very tightly on 5/8" I.D. tubing or loosly in 3/4" I.D. tubing. A 3/4" rubber elbow is also included. Each pump also comes with barbed fitting that threads into the threaded interior of outlet to provide a 12.0mm (0.47") O.D. barb which fits well in 1/2" I.D. tubing. The ET50 and ET200 each have only a plain horizontal 18.0mm (0.71") O.D. outlet connection fits 3/4" I.D. tubing. 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 or about 1/32nd. 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 pressureModelStartup PowerOperating PowerStandard PerformanceConnectionsNoiseWeightDimensions (Inches)ET40A55W30W @ 0.14 bar40Lpm (1.41cfm) @ 0.15 bar14mm Slip; 10mm Barb40dB4.3kg8.66L x 6.10W x 7.48HET60A85W55W @ 0.14 bar60Lpm (2.12cfm) @ 0.17 bar18mm Slip; 12mm Barb45dB6.0kg7.99L x 6.49W x 6.02HET80A105W75W @ 0.14 bar80Lpm (2.83cfm) @ 0.1 bar18mm Slip; 12mm Barb45dB7.0kg8.26L x 7.28W x 6.73HET100A125W80W @ 0.14 bar100Lpm (3.53cfm) @ 0.1 bar18mm Slip; 12mm Barb45dB8.5kg9.37L x 7.71W x 6.96HET120A90W90W @ 0.14 bar120Lpm (4.24cfm) @ 0.1 bar18mm Slip; 12mm Barb45dB9.5kg10.43L x 8.36W x 7.79H Note: The Blue Diamond ET series aerators are designed for relatively shallow water. The ET Series pumps have a maximum pressure threshold such that they should probably only be used in water up to 7' deep.
Price: 439 USD
Location: Downingtown, Pennsylvania
End Time: 2024-02-27T22:43:05.000Z
Shipping Cost: 0 USD
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Item Specifics
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money back or replacement (buyer's choice)
Type: Aerator Pump
Brand: Blue Diamond
Available Variations
Color: ET40A Alarmed Pumps - 4/Pk
Price: 599 USD
Available Quantity: 11
Quantity Sold: 1
Color: ET60A Alarmed Pumps - 4/Pk
Price: 659 USD
Available Quantity: 0
Quantity Sold: 0
Color: ET100A Alarmed Pumps - 2/Pk
Price: 439 USD
Available Quantity: 12
Quantity Sold: 2
Color: ET120A Alarmed Pumps - 2/Pk
Price: 479 USD
Available Quantity: 11
Quantity Sold: 1
Color: ET80A Alarmed Pumps - 4/Pk
Price: 749 USD
Available Quantity: 11
Quantity Sold: 1