Hiblow® USA HP Alarm Air Pumps boast effective aeration, efficient operation and reliable service. For over 30 years, these energy-efficient, low-noise pumps have been used in backyard ponds and aquaculture applications. Every HP Alarm Air Pump features an alarm that will sound if air is not flowing. Also features thermal overload protection to guard against overheating and pump damage.
Oil-free operation - No danger of contamination in your pond!
Linear diaphragm design - Quick, inexpensive repair of worn pumps
Includes pressure tap location for external alarm sensor (Excludes HP-20)
These 120vAc / 60Hz pumps are UL Listed (Excludes HP-20)