









🚀 Elevate your fluid handling game with industrial-grade power and precision!
The Happybuy Air-Operated Double Diaphragm Pump features a 1-inch inlet/outlet, durable aluminum alloy housing, and premium nitrile diaphragms. It delivers up to 35 GPM flow rate and 120 PSI pressure, designed for corrosion resistance and smooth air-operated performance across diverse industrial 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
2 months ago
3 weeks ago