When you're selecting an air-operated double-diaphragm pump for waste-oil transfer, the first question is usually whether the port size and flow rate line up with your existing hoses and the volume you need to move. The Durabl AODD Pump with a 1/2" port and 12 GPM rating puts the focus on that exact trade-off.
Quick verdict
For a 1/2-inch-port air-operated double-diaphragm transfer setup, the Durabl AODD Pump is a straightforward choice. The listed price is USD 220.25, and the included parts point to a complete QBK-15 pump assembly rather than a bare pump head. If 12 GPM is enough for your waste-oil transfer and you are comfortable with 1/2-inch inlet and outlet connections, this pump deserves a close look.
Who it suits
This pump fits best when your transfer line is already built around 1/2-inch connections. The 12 GPM flow rate is a practical target for smaller waste-oil jobs, maintenance work, or drum transfers where you do not need a high-volume pump. It also suits anyone looking for an air-operated design that avoids electric motors in the fluid path.
AODD Pump 1/2" Port 12 GPM Industrial Pneumatic Waste Oil Transfer Pump | Durabl
The listing centers on a QBK-15 air operated double diaphragm pump with 1/2-inch inlet and outlet ports. The flow rate is 12 GPM, and the overall dimensions are 6 inches long, 4 inches wide, and 10.6 inches high. The pump is white and described as new. At USD 220.25, the price point makes it a targeted option for pneumatic waste-oil transfer through 1/2-inch lines.
What stands out from the listed details
The standout detail here is the 12 GPM flow rating paired with a 1/2-inch port. That tells you the pump is sized for moderate transfer work. The included component listing names the QBK-15 pump itself, so you are not left guessing about which model sits inside the housing. The compact dimensions-6 by 4 by 10.6 inches-also give you a quick sense of the envelope you need to clear around the pump.
Meaningful trade-offs
The main trade-off is the 1/2-inch port. For a 12 GPM pump, that port size defines the compatibility: with 1/2-inch inlet and outlet, this pump matches systems using that connection size. That is also its main limitation if your transfer setup is built around larger ports. The white color and the listed dimensions are fine for most industrial settings, but they are not performance features.
Bottom line
The Durabl AODD Pump is a practical option when your needs line up with a 1/2-inch port and 12 GPM flow. The listed USD 220.25 price covers the QBK-15 pump with its inlet and outlet, and the compact dimensions make it easier to plan around. If those specs match your waste-oil transfer task, this is a solid fit for the role.
