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Happybuy Air-Operated Double Diaphragm Pump 1 inch Inlet Outlet Aluminum 35 GPM Max 120PSI, Nitrile Diaphragm, QBY4-25L-1inch-35
✅ In stock
F
Grade
Analysis Confidence
100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Jul 4, 2026 9:49 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price is slightly above the going rate for this product — worth watching for a drop.
- 🏷️The retail sticker price has been slashed by 55% — a steep markdown from the official listing.
- 📉This is the most affordable price seen in roughly three months — a solid near-term opportunity.
- 📈Prices have been moving higher lately — waiting risks paying more if that momentum continues.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
2.86/20
Deal Strength
7/20
Momentum
0/10
📝 Product Overview
🏪 Sold by
Happibuy
🚚 Shipping
Free Shipping
Product Details
✓Premium Double Nitrile Diaphragms: Our air-operated double diaphragm pump adopts nitrile diaphragms, durable, corrosion-proof, and long-lasting. Max. Temperature: 150 ℉/66 ℃; Max. Pressure: 120 psi; Max. Flow Rate: 39.6 GPM; Max Head Lift：275.6 ft/84 m.
✓Sturdy & Leak-proof Construction: The diaphragm pump housing is made of aluminum alloy material, bolted against leakage, sturdy, and corrosion-proof for long-time use.
✓Excellent Air-operated Performance: Inlet/Outlet Port Size: 1 inch; Air Inlet Size: FNPT 1/2 inch. A high-quality glyd ring, the double-acting sealing, strengthens air performance.
✓Unique & Professional Designs: Our double diaphragm pump features an externally available air distribution system. The modular air valve is stainless. This low pulsation air valve provides smooth and rapid changeover for increased efficiency and minimizes downtime.
✓Wide Applications: This diaphragm pump can handle various fluids, such as waste oil, alcohol, hydraulic fluid, gasoline, diesel, detergent, drink, and so on. It is widely used in many industries, such as petroleum, metallurgy, mining, coating, printing, water treatment, and automobile.
⚙️ Specifications
Brand
Happybuy
Color
Black
Material
Aluminum
Style
Diaphragm
Product Dimensions
7.8"L x 7"W x 33"H
Power Source
Air-Operated
Item Weight
19 pounds
Maximum Flow Rate
35 gpm
Maximum Lifting Height
275.59 feet
Global Trade Identification Number
00789458202135
Manufacturer
Happybuy
