Watermain Supply PR4 pollution recovery pump, Teflon-fitted

Watermain Supply PR4 Pollution Recovery Pumps

Watermain Supply PR4 pollution recovery pumps: 4 in submersibles built for landfill leachate, groundwater recovery and remediation wells.
Each PR4 is a Grundfos SP stainless pump end refitted with Teflon (PTFE) bearings on a Franklin Electric 4 in Pollution Recovery motor.
A continuous lead in CPE-XLPE, HiLo or Teflon, 100 ft or 150 ft, comes with every pump, with no splice in the well.
Three listings by flow: 5-10 GPM for deep, low-yield wells, 16-35 GPM for typical leachate wells and 45-77 GPM for sumps and dewatering; 1/2 to 2 HP.
The PR4-E is built on Grundfos's own Redi-Flo4 environmental pump end, 5-25 GPM, for sites replacing Redi-Flo4 pumps.
Assembled at no charge, head published already derated for the refit, 30-day package warranty.
Normal lead time is 3-4 days after receipt of order; 24 hr expedite is available.
We size every PR4 to your well before it ships. Call 1-888.510.4036.

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Grundfos Redi-Flo4 Pollution Recovery Pump Package - 5-25 GPM
Watermain Supply PR4-E pollution recovery pump: Grundfos Redi-Flo4 environmental pump end, Franklin Pollution Recovery motor and continuous lead

Watermain Supply

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Grundfos Redi-Flo4 Pollution Recovery Pump Package - 5-25 GPM

From $4,267.82
Watermain Supply PR4 Teflon-Fitted Pollution Recovery Pump - 5-10 GPM
Watermain Supply PR4 Teflon-fitted pollution recovery pump, 5-10 GPM: Grundfos SP pump end, Franklin Pollution Recovery motor and continuous lead

Watermain Supply

Free Shipping $499 or more

Watermain Supply PR4 Teflon-Fitted Pollution Recovery Pump - 5-10 GPM

From $3,491.09
Watermain Supply PR4 Teflon-Fitted Pollution Recovery Pump - 16-35 GPM
Watermain Supply PR4 Teflon-fitted pollution recovery pump, 16-35 GPM: Grundfos SP pump end, Franklin Pollution Recovery motor and continuous lead

Watermain Supply

Free Shipping $499 or more

Watermain Supply PR4 Teflon-Fitted Pollution Recovery Pump - 16-35 GPM

From $3,558.47
Watermain Supply PR4 Teflon-Fitted Pollution Recovery Pump - 45-77 GPM
Watermain Supply PR4 Teflon-fitted pollution recovery pump, 45-77 GPM: Grundfos SP pump end, Franklin Pollution Recovery motor and continuous lead

Watermain Supply

Free Shipping $499 or more

Watermain Supply PR4 Teflon-Fitted Pollution Recovery Pump - 45-77 GPM

From $4,285.58
Watermain Supply PR4 4 in Stainless Steel Wheeled Shroud
Watermain Supply PR4 4 in stainless steel wheeled shroud in a landfill side-slope riser

Watermain Supply

Free Shipping $499 or more

Watermain Supply PR4 4 in Stainless Steel Wheeled Shroud

From $1,295

Watermain Supply PR4 Pollution Recovery Pumps

Watermain Supply · Environmental Pumps

PR4 Pollution
Recovery Pumps

Teflon-fitted 4 in submersibles for landfill leachate, groundwater recovery and remediation wells. A Grundfos SP stainless pump end refitted with PTFE bearings, a Franklin Electric Pollution Recovery motor and a continuous lead in CPE-XLPE, HiLo or Teflon, assembled and shipped as one unit. Normal lead time is 3-4 days after receipt of order; 24 hr expedite available.

Watermain Supply PR4 pollution recovery pump: Teflon-fitted Grundfos SP pump end, Franklin Pollution Recovery motor and continuous lead
5-77 GPMRated flow, 9 classes
1/2-2 HPFranklin PR motor
535 ftMax head at rated flow
3 LeadsCPE-XLPE, HiLo, Teflon
30 DaysPackage warranty

The PR4 is our 4 in pollution recovery pump, built for the wells where a standard water-well pump fails early: landfill leachate extraction wells and sumps, pump-and-treat remediation, hydrocarbon recovery and contaminated-site dewatering. Each one pairs a Grundfos SP multistage pump end in AISI 304 stainless steel, refitted with Teflon (PTFE) bearings, with a Franklin Electric 4 in Pollution Recovery motor that uses Viton rubber parts and an all stainless exterior.

The lead comes with it. Choose CPE-XLPE, HiLo or Teflon (FEP) at 100 ft or 150 ft, made in one continuous run with a stainless jam-nut plug, so there is no splice in the well. Pump end, motor and lead ship assembled at no assembly charge, and we check your duty point, setting depth and liquid before you order. Call 1-888.510.4036. Built from genuine, factory-new Grundfos and Franklin Electric components, refitted and assembled for Watermain Supply, an independent industrial supplier.

PR4 5-10 GPM5S, 7S and 10S, to 535 ft at rated flow PR4 16-35 GPM16S, 25S and 35S, to 337 ft at rated flow PR4 45-77 GPM45S, 62S and 77S, to 105 ft at rated flow PR4-E Redi-Flo4Grundfos Redi-Flo4 pump end, 5-25 GPM

Will a PR4 Work in Your Well?

The four questions landfill operators and remediation contractors ask first.

Built for the Chemistry

PTFE bearings in the pump end, Viton rubber parts and a stainless exterior on the motor, and a lead jacket chosen for your liquid. Hydrocarbons and solvents that swell NBR rubber and break down standard leads are what this package is built for.

30-Day Package Warranty

30 days from purchase on the assembled package, from Watermain Supply. The refit and continuous lead modify the factory build, so the original Grundfos and Franklin warranties do not apply; we say that up front.

The Fit Limits

4 in minimum well or riser I.D. Liquid to 86 F with no flow sleeve. 1/2 to 2 HP; 115V or 230V single-phase, 200V, 230V or 460V three-phase. Leads 100 ft or 150 ft. Minimum submergence 2 ft (5S-25S) or 5 ft (35S-77S).

Size It Now

Send the pumping level, setting depth, flow, discharge pressure, liquid and temperature. We return the model, motor and lead the same day.

Run the Calculator

Or email sales@watermainsupply.com · 1-888.510.4036

PR4 Pollution Recovery Pumps

Three PR4 listings by flow on Teflon-refitted Grundfos SP pump ends, plus the PR4-E on Grundfos's own Redi-Flo4 environmental pump end. Pick the listing, then the horsepower and voltage, the lead and the model for your head.

PR4 5S Teflon-fitted pump end performance curve, head derated 15%

PR4 5-10 GPM

Low flow, high head

5S, 7S, 10SFlow classes
5-10 GPMRated flow
107-535 ftHead at rated flow
1 in / 1-1/4 inNPT discharge

Teflon-fitted Grundfos SP 5S, 7S, 10S pump ends on Franklin 4 in Pollution Recovery motors, with the continuous lead you choose.

  • 1/2 to 2 HP, single-phase 2-wire or 3-wire and three-phase
  • CPE-XLPE, HiLo or Teflon lead, 100 ft or 150 ft
  • Assembled, 30-day package warranty
Best forRecovery and monitoring wells with low yield and deep pumping levels; leachate wells that draw down fast.
View PR4 5-10 GPM
PR4 25S Teflon-fitted pump end performance curve, head derated 15%

PR4 16-35 GPM

Mid flow, the leachate workhorse

16S, 25S, 35SFlow classes
16-35 GPMRated flow
51-337 ftHead at rated flow
1-1/4 in / 1-1/2 inNPT discharge

Teflon-fitted Grundfos SP 16S, 25S, 35S pump ends on Franklin 4 in Pollution Recovery motors, with the continuous lead you choose.

  • 1/2 to 2 HP, single-phase 2-wire or 3-wire and three-phase
  • CPE-XLPE, HiLo or Teflon lead, 100 ft or 150 ft
  • Assembled, 30-day package warranty
Best forTypical landfill leachate extraction wells and pump-and-treat recovery wells.
View PR4 16-35 GPM
PR4 62S Teflon-fitted pump end performance curve, head derated 15%

PR4 45-77 GPM

High flow, low head

45S, 62S, 77SFlow classes
45-77 GPMRated flow
31-105 ftHead at rated flow
2 inNPT discharge

Teflon-fitted Grundfos SP 45S, 62S, 77S pump ends on Franklin 4 in Pollution Recovery motors, with the continuous lead you choose.

  • 1 to 2 HP, single-phase 2-wire or 3-wire and three-phase
  • CPE-XLPE, HiLo or Teflon lead, 100 ft or 150 ft
  • Assembled, 30-day package warranty
Best forLeachate sumps and cleanout risers, dewatering and transfer where the lift is short and the flow is high.
View PR4 45-77 GPM
PR4-E 10E Grundfos Redi-Flo4 pump end performance curves

PR4-E Redi-Flo4

Factory environmental pump end

5E, 10E, 16E, 25EFlow classes
5-25 GPMRated flow
43-333 ftHead at rated flow
1 / 1-1/4 / 1-1/2 inNPT discharge

Genuine Grundfos Redi-Flo4 environmental pump ends, Teflon bearings and seals from the factory, on Franklin 4 in Pollution Recovery motors with the continuous lead you choose. Published Grundfos curves, no derate.

  • 1/2 to 1-1/2 HP, single-phase 2-wire or 3-wire and three-phase
  • CPE-XLPE, HiLo or Teflon lead, 100 ft or 150 ft
  • Assembled, 30-day package warranty
Best forSites replacing Redi-Flo4 pumps, and specs that call for a factory environmental pump end.
View PR4-E Redi-Flo4

What Comes in Every PR4

Three parts, assembled and tested for fit before shipping. What makes it different from a pump you put together yourself is the refit and the lead.

Teflon-Refitted Pump End

Grundfos SP multistage hydraulics in AISI 304 stainless steel with a built-in check valve. The rubber bearings are replaced with PTFE, which holds up in hydrocarbons and solvents that swell NBR.

Franklin Pollution Recovery Motor

Franklin's 4 in motor for wells where chemicals may be present: Viton rubber parts, hermetically sealed windings, stainless splined shaft and all stainless exterior. Continuous duty to 86 F with no flow sleeve. UL 778 Recognized, CSA Certified.

Continuous Lead, No Splice

One run from the motor to the surface in CPE-XLPE, HiLo or Teflon (FEP), 12 AWG, with a 316 stainless jam nut and sleeve and a Viton bushing. 2 conductors plus ground on 2-wire motors; 3 plus ground on 3-wire and three-phase.

Assembled, No Charge

Pump end, motor and lead ship as one unit, ready to hang on drop pipe and a safety cable. No assembly charge.

Sized Before It Ships

Every PR4 is checked against your pumping level, setting depth, flow and liquid. Head figures are published already derated for the refit, so the pump you size is the pump you get.

Derated Curves Published

Each flow class has a Teflon-fitted curve, cut 15% from the Grundfos 60 Hz curve per Cuvo refit performance data. The standard Grundfos data sheets are on each listing for dimensions.

PR4 continuous motor lead with stainless jam nut and Viton bushing for Franklin 4 in motors

Choosing the Lead

The lead is the part most likely to fail in a contaminated well. Pick the jacket for the worst liquid the well will see, not the average.

Lead Jacket and insulation Best for Temperature rating Lengths
CPE-XLPE CPE jacket over XLPE-insulated conductors Leachate and general groundwater with dissolved contaminants Per cable maker 100 ft, 150 ft
HiLo STPE thermoplastic rubber, jacketed Oils, solvents and chemicals in water; hot or cold service -50 to 200 F; 105 C dry, 75 C wet, 60 C in oil 100 ft, 150 ft
Teflon (FEP) FEP-insulated conductors in a clear FEP jacket Free product, chlorinated solvents and aggressive chemistry 90 C wet (type ZW) 100 ft, 150 ft

From the PR4 continuous lead data sheet, on the Data Sheet tab of every PR4 listing. All leads are 12 AWG stranded copper. Longer lengths are quoted per foot.

Which PR4 Do You Need?

Typical selections by application. Send us the well data for an engineering-led selection.

Application Typical duty Recommended Lead
Landfill leachate extraction well 5-25 GPM, 100-300 ft PR4 5-10 GPM or 16-35 GPM CPE-XLPE; HiLo where oils are present
Leachate sump or cleanout riser 30-75 GPM, under 100 ft PR4 45-77 GPM in a wheeled shroud CPE-XLPE or HiLo
Pump-and-treat recovery well 10-35 GPM PR4 16-35 GPM HiLo; Teflon for chlorinated solvents
Hydrocarbon recovery, free product present 5-16 GPM PR4 5-10 GPM or 16-35 GPM Teflon (FEP)
Monitoring and low-yield recovery wells Under 10 GPM, deep pumping level PR4 5-10 GPM, 2-wire for no control box Per chemistry
Contaminated-site dewatering 35-77 GPM, short lift PR4 45-77 GPM CPE-XLPE or HiLo

Duties are typical ranges, not limits. Size from the derated tables on each listing.

PR4 Performance, Teflon-Fitted

Head at rated flow by flow class, already cut 15% for the Teflon refit. Full model-by-model tables are on each listing.

Flow class Rated flow Horsepower Head at rated flow Discharge Models
5S 5 GPM 1/2 to 1-1/2 HP 156 to 497 ft 1 in NPT 6
7S 7 GPM 1/2 to 2 HP 139 to 535 ft 1 in NPT 6
10S 10 GPM 1/2 to 2 HP 107 to 470 ft 1-1/4 in NPT 6
16S 16 GPM 1/2 to 2 HP 95 to 337 ft 1-1/4 in NPT 5
25S 25 GPM 1/2 to 2 HP 54 to 194 ft 1-1/2 in NPT 5
35S 35 GPM 3/4 to 2 HP 51 to 142 ft 1-1/2 in NPT 4
45S 45 GPM 1 to 2 HP 61 to 105 ft 2 in NPT 3
62S 62 GPM 3/4 to 2 HP 34 to 83 ft 2 in NPT 4
77S 77 GPM 3/4 to 2 HP 31 to 65 ft 2 in NPT 3

PR4-E, Grundfos Redi-Flo4 pump end (published curves, no derate)

Flow class Rated flow Horsepower Head at rated flow Discharge Models
5E 5 GPM 1/2 to 1-1/2 HP 43 to 333 ft 1 in NPT 7
10E 10 GPM 1/2 to 1-1/2 HP 77 to 285 ft 1-1/4 in NPT 5
16E 16 GPM 1/2 to 1-1/2 HP 69 to 227 ft 1-1/4 in NPT 4
25E 25 GPM 1/2 to 1-1/2 HP 44 to 123 ft 1-1/2 in NPT 4

Teflon-fitted curve, 25S class

PR4 25S Teflon-fitted performance curve, head derated 15% from the Grundfos SP 60 Hz curve

Total head in feet at 60 Hz, 3,450 rpm. Cuvo refit performance data shows Teflon-fitted SP pump ends delivering 10 to 15% less head than standard; every figure here is the Grundfos 60 Hz curve value cut by 15% and rounded down. 1 ft of head = 0.433 PSI.

PR4 vs a Standard Submersible

We sell standard 4 in submersibles too, so here is the honest split. For clean water they are the better buy; the PR4 is for wells that eat standard pumps.

Feature Watermain Supply PR4 Standard Grundfos SP 4 in A.Y. McDonald 23000 Series
Built for Leachate, hydrocarbons, solvents, remediation Potable and clean groundwater Residential and agricultural water wells
Pump bearings Teflon (PTFE), refitted NBR (5S-25S); LSR/FKM (35S-77S) Per manufacturer
Motor Franklin Pollution Recovery: Viton parts, stainless Standard water-well motor Standard water-well motor
Lead Continuous CPE-XLPE, HiLo or Teflon, included Standard motor lead; drop cable separate Standard motor lead; drop cable separate
Head About 15% below the standard SP curve Full published curve Full published curve
Warranty 30 days, Watermain Supply package warranty Manufacturer warranty Manufacturer warranty
Assembly Assembled, ready to hang Assembled at the factory Assembled at the factory

Verdict. In clean water a standard Grundfos SP or A.Y. McDonald 23000 costs much less, delivers the full curve and carries the longer factory warranty: buy one of those. The PR4 earns its price where chemistry destroys standard elastomers and leads. Buying a Franklin Pollution Recovery motor and a standard SP pump end separately still leaves NBR bearings in the 5S-25S pump ends and the lead to source, and Franklin states its motor warranty is void without Franklin-supplied leads.

Controls and Accessories

What each build needs to run, ordered with the pump so the job ships together.

Franklin Electric single-phase 3-wire control boxes

Franklin 3-Wire Control Box

Required on single-phase 3-wire builds. Match the box to the motor horsepower and voltage.

 Franklin Electric X-Drive SUB VFD panel for submersible pumps

Franklin X-Drive SUB

Drive panel for three-phase builds: soft start, level or pressure control and motor protection.

 Stainless wheeled shroud for a 4 in submersible in a landfill side-slope riser

PR4 Wheeled Shroud

304 stainless shroud on angled wheels for side-slope risers and horizontal sumps. Built to your PR4 model and riser I.D.

Single-phase 2-wire builds need no control box. Three-phase builds can also run from a magnetic starter with quick-trip overloads.

Why Buy the PR4 from Watermain Supply

Built for Bad Wells

A package designed around the parts that fail in contaminated service: elastomers, bearings and leads.

Ships in 3-4 Days

Normal lead time is 3-4 days after receipt of order. Need it tomorrow? Add Expedite Service - 24 hr and it ships the next business day.

We Verify the Duty Point

Every PR4 is checked against the derated curve for your flow, setting depth and discharge pressure before it ships.

Multi-Brand Honesty

We also sell standard Grundfos, Franklin Electric, A.Y. McDonald and DAB submersibles. If a standard pump will do the job, we will say so.

Account Terms Available

Net-30 for qualified landfill operators, environmental contractors and municipal accounts.

Shrouds and Longer Leads

Wheeled shrouds built to your PR4 model and riser. Leads past 150 ft quoted to your site.

Frequently Asked Questions

Common questions from landfill operators, environmental engineers and remediation contractors.

What is the Watermain Supply PR4?

A 4 in pollution recovery pump assembled from a Grundfos SP stainless pump end refitted with Teflon (PTFE) bearings, a Franklin Electric 4 in Pollution Recovery motor and a continuous chemical-resistant lead. It ships assembled for landfill leachate, groundwater recovery and remediation wells.

Which lead should I choose?

CPE-XLPE for leachate and general groundwater with dissolved contaminants. HiLo for oils, solvents and chemicals in water. Teflon (FEP) for free product, chlorinated solvents and the most aggressive chemistry. Every lead is one continuous run with a stainless jam-nut plug and a Viton bushing.

How much head does the Teflon refit cost?

Cuvo's refit performance data shows 10 to 15% less head than a standard SP pump end. Every head figure we publish for the PR4 is already cut by 15% and rounded down, so size from our tables and curves, not the standard Grundfos curve.

What warranty comes with a PR4?

30 days from purchase on the assembled package, from Watermain Supply. The refit and the non-Franklin continuous lead modify the factory build, so the original Grundfos and Franklin warranties do not apply.

Do I need a control box or a drive?

Single-phase 2-wire builds need neither. Single-phase 3-wire builds need a Franklin 3-wire control box. Three-phase builds need a magnetic starter with quick-trip overloads, or a drive such as the Franklin X-Drive SUB panel for level control.

Can the PR4 go in a side-slope riser?

Yes, in the PR4 stainless wheeled shroud. It is built to the length of your PR4 model with the wheels set for your riser I.D.: 12, 18, 24 or 30 in, other sizes quoted.

How hot can the liquid be?

Franklin rates the Pollution Recovery motor for continuous duty in water up to 86 F (30 C) with no flow sleeve. For warmer leachate, send us the temperature and we size a flow sleeve or shroud and check Franklin's derating.

What is the PR4-E?

The PR4-E is the PR4 built on a genuine Grundfos Redi-Flo4 environmental pump end, with Teflon bearings and seals from the factory, instead of a Teflon-refitted SP pump end. It covers 5 to 25 GPM at 1/2 to 1-1/2 HP, uses Grundfos's published curves with no derate, and is the direct replacement for Redi-Flo4 pumps.

How fast does a PR4 ship?

Normal lead time is 3-4 days after receipt of order. Add Expedite Service - 24 hr to the order and it ships the next business day.

What if my setting is deeper than 150 ft?

The standard leads are 100 ft and 150 ft. Deeper settings or long runs to the controls get a longer lead quoted per foot, or a splice made above the well, out of the contaminated zone.

Ready to Size Your PR4?

Send the pumping level, setting depth, flow, discharge pressure, liquid and temperature. We will reply the same day with a sized PR4, lead and ship date.

1-888.510.4036 Run the Sizing Calculator Email sales@watermainsupply.com Request a Quote
Pump end data from Grundfos SP 60 Hz literature, derated for the Teflon refit per Cuvo refit performance data; motor data from the Franklin Electric 4 in Pollution Recovery Submersible Motors bulletin. Subject to change; confirm against current literature before specifying.
Grundfos and SP are trademarks of Grundfos Holding A/S; Franklin Electric and X-Drive of Franklin Electric Co., Inc.; A.Y. McDonald of A.Y. McDonald Mfg. Co.; DAB of DAB Pumps S.p.A.; Teflon and Viton of The Chemours Company. All are used here for product identification only.
Watermain Supply is a DBA of E4 Industrial LLC, an independent industrial supplier.