Order By Phone – (800) 778-1540 or (636) 583-1608 – M-F: 8:00AM to 4:30PM (CST)
One diaphragm kit for Whirlwind STA40 Linear Air Pump.
Whirlwind air pumps provide years of dependable service but due to continual wear over time some pump components may need to be replaced in order to continue to provide the proper air flow. Instead of purchasing a new pump, you may just need to replace some internal components.
Diaphragm kit includes two diaphragm blocks, two diaphragm heads, one filter pad, and hardware.
Free Shipping on Orders Over $30 + Same Day Shipping! Mon.-Fri. (if ordered by 2:00 pm CST)
We offer a 100% Satisfaction Guarantee on your order from septictankparts.com.
Return / Exchange Policy
2.7 CFM, 2 Year Warranty
The Whirlwind STA40 Septic Air Pump is one of the highest quality, reliable septic air pumps on the market today! It's longer service life and performance makes it one of the best available. Perfect for some 500 GPD treatment systems as well as pond aeration, etc.
Most 500GPD treatment systems will use our Whirlwind ST60N or STA80N.
Filter pad (1)
Hose and clips (2)
The Whirlwind STA40 Septic Air Pump comes with a 2-year limited warranty.
The STA Low Pressure Alarm Kit is a designed with both visual and audible alerts when air pressure drops below the recommended levels. These alarms signify when the diaphrams are in need of replacement. It can also be used with other brand air pumps.
Filter for Whirlwind Air Pumps are replacement filters for STA40, STA60N, STA80N and STA80AL Whirlwind Linear Air Pumps.
Includes one filter
The Fine Bubble Air Diffuser delivers fine air bubbles for maximum aeration in your septic system.
The Red Alert P101-2 Control Panel is designed for use with all brands of air pumps, vane pumps, regenerative blowers. Not for use with shaft style aerators.
We offer a 2-year limited warranty on Red Alert Control Panels.
Order by phone – Call us toll free: (800) 778-1540 – Weekdays 8:00AM to 4:30PM (CST)