Piston Cup Assembly for John Blue 21630 E-Z Meter Injection Pumps

Built specifically for John Blue 21630 injection pumps, this piston cup assembly installs within the pump's pumping cylinder. The piston assembly allows the cylinder to subsequently draw in and discharge the product being pumped, therefore enabling your 21630 E-Z Meter injection pumps to efficiently transfer fertilizer and chemical solutions. The piston cup assembly is constructed of 316 stainless steel and chemically resistant polypropylene for premium chemical and corrosion resistance when in contact with wetted materials. Range of performance is 10-100 GPH.