Sta-Rite Dominator 20DOM05121 20 gpm 115V 1/2 hp Effluent Pump

Sta-Rite Dominator 20DOM05121 20 gpm 115V 1/2 hp Effluent Pump

Sta-rite $230.00 Submersible Septic Effluent Pump, Stainless Steel, 20 GPM

The S.T.E.P. Plus D-Series 4 20 gpm submersible pump series models dominates with superior draw-down capability. Sold & proven in aerobic & filtered effluent service applications.

Key Features
  • 1/ 2 HP
  •  115 Volt , single-phase, 2-wire
  • Superior draw-down capability to 4-1/2” (114mm) vs. 13-1/2” (343mm) on a standard NEMA 4”
  • 25% Reduced AMP-draw vs. a standard NEMA 4”
  • Cooler and quieter operation – eliminates expensive flow inducer sleeves
  • UL, CSA Listed
  • Stainless steel and composite construction
  • Proven SignaSeal staging
  • Exclusive STA-RITE® dry-run capability
  • Enclosed and self-lubricated Nylatron® shaft-bearing resists wear from abrasives
  • Heavy 7/16” (12mm) positive drive 300 Series stainless steel hexagonal shaft
  • Stainless steel intake screen – allows for .080” solids

12 months from date of purchase or 18 months from date of manufacture, whichever comes first

STA-RITE dominator 20 GPM 115 V1/2 hr water pump for aerobic septic.


Ask a Question
  • Hardwire, or cord, if cord how long, thaks, Ken

    You have to hard wire these pumps. They have a 10 ft lead cord that is already hardwired to the pump all the pumps like this that we sell 110 volts. You will have a white wire, black wire , and green wire.

  • Does this product come with the float switch also

    The float is sold separately you can find the recommended one by clicking this link float switch  

  • Is this pump good for a 60' deep well?

    It could pump from that depth no issue.

  • can this pump be 'valved down' to restrict its output to 2 gallons per minute?

    No you would almost be dead head the pump and you would burn the motor up.

  • How far up hill will this push to field lines

    pretty good distance 80-100 feet up hill