Blue Diamond ET80+ Plus – Septic or Pond Linear Diaphragm Air Pump with Free. Free additional air filter replacement All Aluminum Air Pump Chasis UL, TUV and CE approved. Used by original equipment manufacturers of NSF certified residential sewage treatment systems. 75 Liter/min Air Flow is Suitable for any 500 gal (GPD) Residential Septic Tank. All our stock ships from US-based warehouses. As our valued customer, we will do our best to make sure the product you receive arrives to you on time and as expected. The item “Blue Diamond ET80+ Plus Septic or Pond Linear Diaphragm Air Pump with Free” is in sale since Tuesday, November 30, 2021. This item is in the category “Home & Garden\Home Improvement\Plumbing & Fixtures\Pumps & Water Filtration Systems\Pumps”. The seller is “elbuzagl0″ and is located in Miami, Florida. This item can be shipped worldwide.