Sump Pumps

ST 1033 NS
ST 1033 NS
  • Flow Chart ST Series
  • ST 1033 SM DFC1
  • ST 1033 SM DFC1.5
  • ST 1033 DFC2
  • ST 1033 NS
  • Flow Chart ST Series
  • ST 1033 SM DFC1
  • ST 1033 SM DFC1.5
  • ST 1033 DFC2
  • ST 1033 NS

ST Series

  • Cast iron / cast aluminum construction
  • Available pumps:
    1/3 HP and 1/2 HP
  • Energy efficient permanent split capacitor (PSC) motor
  • Premium pump construction
        -  Water cooled motor (no cooling oil)
        -  Upper and lower sealed ball bearings
              for ultra-quiet operation
        -  Stainless steel fasteners for long life
        -  Dual carbon / ceramic seals plus
              (1) Buna-N-Seal
        -  Thermally protected
        -  10’ power cord
  • Continuous duty rated
  • Will fit in 10” diameter sump pit
  • ST Series Energy Savings: Average $57* per year
  • 3 Year warranty when purchased from and installed by a contractor, otherwise 18 month


Tether Float Vertical Float Dual Float
TSC1.5 VSC1.5 DFC1.5


*Based on an average sump pump run time of five minutes per hour for one year. The estimated average of a 1/3 HP shaded pole motor is 9.5 Amps. Average electric cost per-kilowatt-hour is $0.12


  ST1033 ST1050
Motor - HP 1/3 HP 1/2 HP
Flow @ 10 ft. GPH (3 M.) 3,770 GPH 4,320 GPH
Flow @ 10 ft. GPM (3 M.) 46 GPH 72 GPM
Max. Head 29' / 8.8 m 32’ / 9.8 m
Pump Discharge 1.5" 3.8 cm 2” / 5.1 cm
Amps. @ 10 Ft. Total Head 3.8 Amps 4.8 Amps
Weight 17 lbs. / 7.7 kg 28 lbs. / 12.7 kg
Width 7.5” / 19.1 cm 10” / 25.4 cm
Depth 5” / 12.8 cm 6.5” / 16.5 cm
Height 13.8” / 34.9 cm 16.3” / 41.4 cm

Mix and Match

We want to provide our customers every option possible, so we’ve come up with two ways to order. You can order using our “Mix and Match” method or select a pre-packaged pump with a switch included. This allows you the ability to have not only the quality pump you need but, the features and technology you want to go with it.

Option 1: Mix and Match – Order a pump and a switch as separate items

  • The pumps and switches are purchased as separate items, then combine to complete the system to meets your wants and needs
  • Best way to allow for many options
    • Select a pump, based on capacity, warranty or build materials
      • Example: the S3033-NS, a 5 year warranty, high capacity pump with No Switch
    • Then, select a switch to pair with it based on the features
      • Example: the DFC2, a Dual Float Switch with Deluxe Controller that has lights, alarms and when paired with a PS-WiFi can send text, email or in-app alerts


 Option 2: Pre-Packaged System – Order the pump and switch together in one box

  • Order any pump with the switch already packaged in a single carton, ready for delivery
    • Example: The S2033-VSC2, is a 4 year warranty, all cast iron pump and Vertical Switch with Deluxe Controller that has lights, alarms and when paired with a PS-WiFi can send text, email or in-app alerts

Models Available

Switch Options ST1033
1/3 HP Pump
1/2 HP Pump

Pump, with no switch

ST1033-NS ST1050-NS

Dual float switch with standard controller

ST1033-DFC1 ST1050-DFC1

Dual float switch with enhanced controller

ST1033-DFC1.5 ST1050-DFC1.5

Dual float switch with deluxe controller

ST1033-DFC2 ST1050-DFC2
Vertical switch
ST1033-VS ST1050-VS
Vertical switch with enhanced controller
ST1033-VSC1.5 ST1050-VSC1.5
Vertical switch with deluxe controller
ST1033-VSC2 ST1050-VSC2
Tether switch
ST1033-TS ST1050-TS
Tether switch with enhanced controller
ST1033-TSC1.5 ST1050-TSC1.5
Tether switch with enhanced controller
ST1033-TSC2 ST1050-TSC2

Switches and Controllers Comparison

Features Standard Controller
or Switch Only
    DFC1    /   VS    /    TS   
Enhanced Controller
DFC1.5 / VSC1.5 / TSC1.5
Deluxe Controller
DFC2 / VSC2 / TSC2
Includes Dual Float Switch Dot Dot Dot
Includes Vertical Switch Dot (Switch only) Dot Dot
Includes Tether Switch Dot (Switch only) Dot Dot
Sounds an alarm and alerts when:      
      AC power has failed     Dot
      Pump or float problem is detected     Dot
      9V battery is low or slide switch is off     Dot
Remote Notification Connections:
(Allows for connection to external devices)

USB Data Port (Ability to remotely
notify which alert has activated or
what maintenance might be needed)

Remote Terminal (Ability to remotely
notify of a problem or needed
Float switch can be unplugged from
controller for easy installation         
  Dot Dot
System operating light (flashes)   Dot Dot
Adjustable run time from 5-45 seconds
after the water falls
  Dot Dot
Activates pump weekly to exercise and
extend pump life
  Dot Dot
Universal controller mounting tabs   Dot Dot
2' power cord   Dot  
4' power cord     Dot
10' float switch cord Dot Dot Dot
Piggy-back plug Dot Dot Dot
                   All switches include manual and stainless steel hose clamp


1.  Permanent split capacitor (PSC) motor increases energy efficiency AC_Pump_cutout_drawing_ST
2.  Cast iron/stainless steel housing
3.  Non-corrosive polypropylene strainer
4.  Stainless steel shaft and fasteners won't rust
5.  Upper and lower sealed ball bearings
6.  Water cooled
7.  Thermally protected
8.  Two carbon ceramic shaft seals plus (1) Buna-N seal
9.  1-1/2" outlet (S3033)
     2" outlet (S3050 / S3100)
10. Polycarbonate impeller