Blue Diamond Envir-o® ETA Series Air Pumps with Alarm Size:ET40A 39" x 24" R440357 788379311254

39" x 24" R440357 788379311254 19

115V 510344 813166022775 110CFM Cooling Fan Kit (Fits PS10-PS40)

Winkler dissolved oxygen test will give false

3 Year Warranty (Freshwater applications)

Do not submerge

Blue Diamond Envir-o® ETA Series Air Pumps with Alarm Size:ET40A 39" x 24" R440357 788379311254Note: 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 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. Compact, weatherproof