The John Blue DP-687-P Poly Diaphragm Pump is a high flow commercial pump suited for a wide range of low-pressure applications, including gardening, liquid transfer, and powering large sprayers and washers. From its pre-formed diaphragm material to its short crankshaft stroke, this pump is designed with longevity in mind, and its plastic coated components can withstand corrosion from most industrial and agricultural chemicals. With a high flow rate of up to 68 gpm it outperforms it's peers in the poly pump market.

The John Blue 6-piston, semi-hydraulic, Diaphragm Pump is ideal for gardening, small sprayers, washers, and liquid transfer. It's compact and lightweight and can be driven by PTO, electric motor, or gasoline engine, depending on your specific application needs. All wetted parts are plastic coated to withstand today's agricultural and industrial chemicals. The diaphragms are constructed from chemical resistant elastomers for excellent corrosion resistance.

• Max flow: 68.7 gpm
• Max pressure: 218 psi
• Shaft: 1-3/8" 6-spline male PTO on both ends
• Port sizes: 2" HB inlet, 1-1/4" NPT outlet
• Pump shaft rotation: CW and CCW
• Diaphragms: 6, semi-hydraulic, Desmopan® material
• Housing: Anodized aluminum
• Recommended control unit: SC-2660-3 (remote mount)
• Max fluid temperature: 140°F
• Weight: 86 lbs