Hiblow HP-120LL Linear Septic Air Pump

Hiblow HP-120LL Specifications

• 5.2 cfm (cubic feet per minute) Maximum Air Flow (@ 0 PSI)
• 120 LPM (Liters Per Minute) @ 2.57 PSI
• 4.3 PSI Maximum Continous Operating Pressure
• 120VAC, 60 Hz, 1.4A, 100 Watts
• 45 dBA Measured @ 1 meter
• Dimensions: 10.1'' L x 7.9'' W x 8.8'' H
• Condition: NEW
• Includes Rubber 90 with Hose Clamps
• Includes 1/8'' Alarm Connection Fitting
• Replaces Hiblow HP-120-xxxx, Thomas 5120S, Secoh EL-120W, Gast SPP-120, Medo LA-120 and Other 120 LPM units.
• Fits many 750 GPD and some 1000 GPD Aerobic Treatment Systems (Sizing is Determined By Brand of Aerobic System)
• One Year Manufacturer's Warranty

Hiblow HP-120LL Applications

The Hiblow HP-120LL is used on many 750 GPD and some 1000 GPD rated NSF Class 1 Standard 40 aerobic treatment systems (ATUs). The Hiblow linear diaphragm septic air pumps are widely regarded as the highest quality and longest lasting septic air pumps available on the market. They are extremely quiet and very energy efficient. The Hiblow HP-120LL can be used for septic tank aeration as well as an aerator for small ponds and water gardens.

NEW LONG LIFE (LL) MODEL

The new Hiblow HP-120LL is an improved long life version of the Hiblow HP-120. The original Hiblow HP-120 would average around 2-3 years of diaphragm life. This new and improved Long Life version should see around 5 years out of diaphragms in most applications.

Why Choose the Hiblow HP-120LL?

The Hiblow HP-120LL is the gold standard for septic air pumps, trusted by professionals and homeowners for its reliability and performance. Here’s why it stands out:

• Proven Durability: Hiblow’s HP series has led the industry since 2002, with the HP-120LL offering enhanced diaphragm life for fewer replacements.
• Critical Sizing: Properly sized for 750 GPD and select 1000 GPD systems, ensuring optimal aeration without overloading or underperforming (sizing depends on system brand).
• Rebuildable Design: Rebuild kits available to extend pump life, typically requiring maintenance every 3–5 years
• Safety Features: Includes thermal overload protection and an optional SP micro-switch to shut off the pump if diaphragms fail.
• Trusted Brand: Hiblow, a subsidiary of Techno Takatsuki, has been a global leader in linear diaphragm pumps for nearly 100 years.

SEPTIC AIR PUMP SIZE DOES MATTER

A common misconception is that the air pump just puts air in the water, so it doesn’t really matter which size is used. Nothing could be further from the truth. Air pump sizing is actually very important to the operation of your system, and not every system will use the same size air pump. If you have been our website, then you already know there are many different types and sizes. The air pump size is normally determined by the volume capacity of the tank, the style of air diffusers in the tank, and how many GPD (Gallons Per Day) the system is designed to treat.

Our sales team can make sure you get the right size pump if you are unsure about this aspect of buying a new one. In most cases we only need either the model number of the pump you are replacing, or the brand of your aerobic system and the GPD that it is rated to treat. Again, size does matter and it is very important that you get the correct air pump for your system.