Diaphragm Pump Pricing
Analysis of 13,662 diaphragm pump listings to determine market value based on specifications and brand.
What you'll usually pay
💡 Used ones cost about 62% more here.
👉 In short easy summary
The best value is found in brass body pumps (-38% delta) and 3/8 inch inlet models (-36% delta). Premium pricing is driven by aluminum bodies (+101% delta) and Flojet branded units (+169% delta).
💚 Best value for your money
Price by inlet diameter
Why? Price increases with size, ranging from 3/8 in at 54.56 to 1 in at 190.
Price by outlet diameter
Why? Larger capacities command higher prices, with 3/8 in at 55.09 and 1 in at 199.
Price by body material
Why? Material costs vary significantly from brass at 52.98 to aluminum at 170.72.
Price by brand
Why? Brand equity creates a wide spread between unbranded units at 87.44 and Flojet at 228.77.
🛒 Some on sale right now
Common questions
What is the price difference between new and used diaphragm pumps?
The median price for new units is 85, while used units have a higher median of 137.5.
Which body material is the most affordable?
Brass is the most affordable material with a median price of 52.98.
How do premium brands compare to the market median?
While the market median is 84.99, premium brands like SANDPIPER and Flojet have medians of 200 and 228.77 respectively.
How we got these numbers
Worked out from 200 live eBay listings (price range $24–$360, odd outliers ignored). These are asking prices, so use them as a guide. Last checked August 2, 2026.