4004870 REV E MR18

13845 BISHOPS DR., SUITE 200, BROOKFIELD, WI 53005

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13845 BISHOPS DR., SUITE 200, BROOKFIELD, WI 53005

WATERPURIFICATION.PENTAIR.COM | CUSTOMER CARE: 800.279.9404 | tech-support pentair.com

© 2018 Pentair Residential Filtration, LLC. All rights reserved.

§For a detailed list of where Pentair trademarks are registered, please visit waterpurification.pentair.com/brands. Pentair trademarks and

logos are owned by Pentair plc or its affiliates. Third party registered and unregistered trademarks and logos are the property of their

respective owners.

PENTAIR RESIDENTIAL FILTRATION, LLC

13845 BISHOPS DR., SUITE 200 BROOKFIELD, WI 53005

262.238.4400, waterpurification.pentair.com

CUSTOMER CARE: 800.279.9404

EMAIL: techsupport pentair.com

13845 BISHOPS DR., SUITE 200, BROOKFIELD, WI 53005

WATERPURIFICATION.PENTAIR.COM | CUSTOMER CARE:

800.279.9404 | tech-support pentair.com

© 2018 Pentair Residential Filtration, LLC. All rights reserved.

13845 BISHOPS DR., SUITE 200, BROOKFIELD, WI 53005

P: 262.238.4400 | F: 262.238.4418

WATERPURIFICATION.PENTAIR.COM

CUSTOMER CARE: 800.279.9404

tech-support pentair.com

© 2017 Pentair Residential Filtration, LLC

All rights reserved.

13845 BISHOPS DR., SUITE 200, BROOKFIELD, WI 53005 USA

P: 262.238.4400 | WATERPURIFICATION.PENTAIR.COM | CUSTOMER CARE: 800.279.9404 | tech-support pentair.com

© 2018 Pentair Residential Filtration, LLC. All rights reserved.

§For a detailed list of where Pentair trademarks are registered, please visit waterpurification.pentair.com/brands. Pentair trademarks and logos are owned by

Pentair plc or its affiliates. Third party registered and unregistered trademarks and logos are the property of their respective owners.

13845 BISHOPS DR., SUITE 200, BROOKFIELD, WI 53005 USA

P: 262.238.4400 | WATERPURIFICATION.PENTAIR.COM

CUSTOMER CARE: 800.279.9404 | tech-support pentair.com

© 2018 Pentair Residential Filtration, LLC. All rights reserved.

§

For a detailed list of where Pentair trademarks are registered,

please visit waterpurification.pentair.com/brands. Pentair

trademarks and logos are owned by Pentair plc or its affiliates.

Third party registered and unregistered trademarks and logos

are the property of their respective owners.

13845 BISHOPS DR., SUITE 200, BROOKFIELD, WI 53005 USA

P: 262.238.4400 | WATERPURIFICATION.PENTAIR.COM

CUSTOMER CARE: 800.279.9404 | tech-support pentair.com

© 2018 Pentair Residential Filtration, LLC. All rights reserved.

§

For a detailed list of where Pentair trademarks are registered, please visit waterpurification.pentair.com/brands.

Pentair trademarks and logos are owned by Pentair plc or its affiliates. Third party registered and unregistered

trademarks and logos are the property of their respective owners.

13845 BISHOPS DR., SUITE 200, BROOKFIELD, WI 53005 USA

P: 262.238.4400 | WATERPURIFICATION.PENTAIR.COM | CUSTOMER CARE: 800.279.9404 | tech-supportpentair.com

© 2017 Pentair Residential Filtration, LLC. All rights reserved.

§For a detailed list of where Pentair trademarks are registered, please visit waterpurification.pentair.com/brands. Pentair trademarks and logos are owned by

Pentair plc or its affiliates. Third party registered and unregistered trademarks and logos are the property of their respective owners.

PART NUMBER

MODEL

DESCRIPTION

CARTON QTY.

CARTON DIMENSIONS

INCHES (MILLIMETERS)

161154

PENTAIR GRO-2550

4 Stage GRO Reverse Osmosis System

1

18.7" L X 16" W X 18.2" H

(475 mm X 406 mm X 462 mm)

4004424

GRO-50EN

Stage 3, 50 GPD encapsulated GRO reverse

osmosis membrane w/ DLFC

16

11.5" L X 12" W X 17" H

(292 mm X 305 mm X 431 mm)

155014-43

P5 Spun Polypropylene

Stage 1 Sediment Pre-Filter, 5 Micron

24

16" L X 10.75" W X 10.5" H

(406 mm X 273 mm X 268 mm)

155634-43

EPM-10

Stage 2 Carbon Block Pre-Filter

12

13" L X 10.5" W X 11" H

(330 mm X 268 mm X 279 mm)

255521-41

GS-10RO-B

Stage 4 GAC Post Filter

12

10" L X 9" W X 7" H

(254 mm X 229 mm X 178 mm)

SHIPPING SPECIFICATIONS

System Production Rate:

10.09 gpd (38.19 Lpd)

Recovery Rating:

31.76%

Efficiency Rating:

15.39%

TDS Rejection:

96.8%

GRO-2550 SYSTEM INSTALLED WITH P5, EPM-

10, GRO-50EN, GS-10RO FILTER CARTRIDGES

This system has been tested according to NSF/ANSI

58 for the reduction of substances listed below. The

concentration of the indicated substances in water

entering the sysem was reduced to a concentration

less than or equal to the permissible limit for water

leaving the system as specified in NSF/ANSI 58.

PERFORMANCE

Model GRO-2550

Substance

Influent Challenge

Concentration

Max. Permissible

Product Water

Concentration

Reduction

Requirements

Average

Reduction

Standard 58

Total Dissolved

Solids

750 ± 40 mg/L

187 mg/L

96.8%

Cysts*

Minimum 50,000/mL

99.955%

>99.99%

* NSF/ANSI Standard 58 certified to reduce cysts such as Cryptosporidium and Giardia by

mechanical means.

System Tested and Certified by NSF International against

NSF/ANSI Standard 58, and CSA B483.1 for the reduction of

the claims specified on the Performance Data Sheet.

EPA EST. NO. 082989-CHN-001