









🚀 Elevate your workflow with unstoppable pumping power!
The Happybuy Air-Operated Double Diaphragm Pump features a corrosion-resistant aluminum alloy housing and premium nitrile diaphragms, delivering up to 35 GPM flow at 120 PSI. Its advanced stainless steel air valve ensures smooth, efficient operation with minimal downtime. Designed for versatility, it handles diverse fluids across industries like petroleum, mining, and water treatment, making it a reliable powerhouse for professional applications.














| ASIN | B07KSYF7YB |
| ASIN | B07KSYF7YB |
| Batteries Included? | No |
| Batteries Required? | No |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (77) |
| Customer reviews | 4.4 4.4 out of 5 stars (77) |
| Date First Available | 22 June 2022 |
| Date First Available | 22 June 2022 |
| Flow Rate | 35 Gallons Per Minute |
| Included components | 1 x Air-Operated Double Diaphragm Pump, 1 x User Manual |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 8.62 Kilograms |
| Item model number | QBY4-25L |
| Item model number | QBY4-25L |
| Manufacturer | Happybuy |
| Manufacturer | Happybuy |
| Material | Aluminum |
| Part number | diaphragm pump |
| Power source type | Air-Operated |
| Product Dimensions | 19.81 x 17.78 x 83.82 cm; 8.62 kg |
| Product Dimensions | 19.81 x 17.78 x 83.82 cm; 8.62 kg |
| Size | 35GPM AL Alloy Nitrile Rubber |
| Style | Diaphragm |
O**A
Worked very well.
A**N
Worked for water barely and then when I tried oil it didn’t work at all. Went out and spent 2k on a wilden pump and have had not a single problem. Kept getting air locked. Waisted time and money on this piece of crap. Go buy name brand and save yourself the headache.
F**V
Pump ran fine for 6 months then failed, no product support or warranty. Sold by Amazon but Amazon says not supported.
D**I
work better than i thought it would
K**Y
This pump has never pumped anywhere close to 40 gallons per minute but it does move waste oil well. I have used the pump for 3 years and it has gradually gotten slower. It is easy to disassemble and clean but parts do wear out. I have been trying to find a rebuild kit to replace some of the worn components but can’t find anything. Looks like my only option is to buy another one. Will be looking for a pump with repair capability for future purchase as the cost to lifespan ratio is a little higher than I like.
Trustpilot
3 weeks ago
2 months ago