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Flojet 04300531A Self-Priming Quad Diaphragm Pump - 35 PSI, 3.5 GPM, 115 VAC

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13.00 lbs
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This is a four-diaphragm pump with a self-priming ability. Used for water-like and viscous liquid applications. Handles a maximum flow rate 3.5 GPM and a maximum pressure of 35 PSI.
Prep 65

Prop 65


Technical Specifications

Voltage AC: 115
Max GPM: 3.5
Max PSI: 35
Inlet Port: 1/2 inch
Outlet Port: 1/2 inch

Product Description

Pump and Electric Motor

Flojet's 04300531A is a quadruple diaphragm pump with a four-piston design that delivers a high flow rate reaching a maximum of 3.5 GPM. Pump self-primes up to 2.4m vertical lift. Pump body is manufactured using polypropylene for its chemical and corrosion resistant properties. Equipped with a 1/2-inch hose barb inlet and a 1/2-inch male Quest outlet. Compatible with 115 VAC electrical connections.


  • Voltage: 115 VAC 
  • Inlet: 1/2" Hose Barb 
  • Outlet: 1/2" Male Quest 
  • Flow: 3.5 GPM 
  • Max PSI: 35 PSI  
  • Body: Polypropylene] 
  • Check Valve: EPDM  
  • Diaphragm: Santoprene 
  • Option: Pressure Switch 


  • Self-primes up to 2.4m vertical lift 
  • Handles Water-Like and Viscous Liquids up to 250 cP 
  • Four-piston design delivers higher flow rates 
  • Chemical-resistant polypropylene pump head for Iong life 
  • Choice of elastomeric materials to work with many chemicals 
  • Quick-connect plug-in ports for easy installation 
  • Optional pressure-switch control to run the pump only as needed

WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm (For more information go to

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