CHRONOLOGY

This timeline focuses on Pentair's growth in industrial manufacturing, and does not reflect all acquisitions and dispositions of businesses.

March 6, 2007

Pentair acquired Porous Media, a privately held Minnesota company with manufacturing operations in both Minnesota and Texas. The acquisition accelerates the Company's water strategy by strengthening its filtration and separation technology portfolio and extending its reach into attractive new markets.

December 11, 2006

Pentair acquired the assets of Jung Pumpen a leading German manufacturer of wastewater products for the municipal and residential markets. Jung brings to Pentair its strong application engineering expertise, and a complementary product offering, including a new line of water re-use products, submersible wastewater and drainage pumps, wastewater disposal units and tanks.

June 26, 2006

Pentair acquired seventy percent (70%) of the equity of Beijing Jieming Tiandi Environmental Equipment Co., Ltd., a leading Chinese manufacturer of FRP pressure tanks, disc filters, valve and systems used in water filtration, softening and systems applications. The companies' joint venture will be named Beijing Pentair Water Jieming Company.

April 12, 2006

Pentair acquired the assets of Krystil Klear, a privately held company, to complement existing businesses in its Water Group.

December 15, 2005

Pentair announced a joint venture agreement with ITT Industries, Inc. to create FARADYNE Motors LLC. FARADYNE designs, develops and manufactures submersible pump motors.

December 1, 2005

Pentair acquired certain assets of APW Ltd., including the McLean Thermal Management, Aspen Motion Technologies and Electronic Solutions businesses. These businesses provide thermal management solutions and integration services to the telecommunications, data communication, medical and security markets.

May 6, 2005

Pentair received the 2005 Minnesota Business Ethics Award (MBEA), an award established by The Center for Ethical Business Cultures and the Minnesota Chapters of the Society of Financial Service Professionals. Pentair was honored for its commitment to ethical business dealings, as reflected in its Code of Business Conduct and Ethics, and for its passion to sustaining an ethical culture.

February 23, 2005

Pentair acquired the assets of Delta Environmental Products, Inc. to complement existing businesses in its Water Group. Delta offers a full range of wastewater treatment products for the residential and commercial onsite treatment markets.

October 4, 2004

Pentair completes the sale of its Tools Group to Black & Decker for $775 million.

August 2, 2004

Pentair completes the acquisition of WICOR Industries, which manufactures water system, filtration and pool equipment products under the Sta-Rite, SHURflo and Hypro brands, creating a $2 billion Pentair water technology business with nearly 8,000 employees worldwide.

February 10, 2003

Acquired the swimming pool heat pump assets of privately held HydroTemp Manufacturing Co., Inc. of Fort Myers, Florida.

December 31, 2003

Acquired water filtration products manufacturer, Everpure, Inc., of Northbrook, Illinois, from United States Filter Corporation, a unit of Veolia Environnement.

February 26, 2003

Acquired the assets of privately held Letro Products, Inc., of Redding, California, a designer and manufacturer of swimming pool accessories including pool cleaners, skimmer lids, skimmer thermometers, automatic water fillers, flowmeters, and replacement parts.

October 2, 2002

Acquired Oldham Saw Co., Inc. of West Jefferson, North Carolina. Oldham Saw designs and manufactures router bits, circular saw blades, and related accessories for the do-it-yourself and professional power tool markets.

September 3, 2002

Acquired water filtration products manufacturer, Plymouth Products, Inc., of Sheboygan, Wisconsin. Plymouth Products manufactures water filtration products used in residential, commercial, and industrial applications.

September 3, 1999

Acquired DeVilbiss Air Power Company, a manufacturer of air compressors, pressure washers, and generators

August 10, 1999

Acquired Essef Corporation, a manufacturer of products used in moving, treating, and storing water. Essef's PacFab pool and spa equipment business was combined with the Pentair Pump Systems to form the Pentair Pump & Pool Group. Essef's Structural Fibers pressure tank business was combined with Pentair's Fleck Controls to form Pentair Filtration and Purification Technologies.

April 6, 1999

Acquired WEB Tool & Manufacturing, a maker of custom enclosures

October 30, 1998

Acquired the Walker Dickson Group Ltd., a manufacturer of electronic enclosures; the business now operates as Pentair Enclosures U.K.

April 30, 1998

Acquired T-Tech Industries, a maker of automotive transmission fluid (ATF) exchanger systems; T-Tech is wholly owned by Century Manufacturing

January 30, 1998

Acquired ORSCO, a manufacturer of precision oil dispensing systems; ORSCO is wholly owned by Lincoln Industrial

January 1, 1998

Restructured into three operating groups: Professional Tools and Equipment; Water and Fluid Technologies; and Electrical and Electronic Enclosures

January 1, 1998

Established The Pentair Foundation for charitable giving

October 31, 1997

Sold Federal Cartridge Company to Blount International

August 23, 1997

Acquired the General Signal Pump Group, a manufacturer of fluid handling products and systems, comprising four name-brand businesses -- Aurora, Hydromatic, Fairbanks Morse, and Layne & Bowler; these businesses were combined with F.E. Myers to form the Pentair Pump Systems

July 2, 1997

Acquired P&F Technologies Ltd., a maker of refrigerant recycling systems and accessories; P&F Technologies is wholly owned by Century Manufacturing

January 28, 1997

Acquired Transrack, a manufacturer of electronic enclosures; Transrack is wholly owned by Schroff

December 2, 1996

Acquired SIATA, a maker of water conditioning control equipment; SIATA is wholly owned by Fleck Controls

November 4, 1996

Acquired Century Manufacturing Company, a maker of vehicle service equipment

June 12, 1996

Acquired FLEX, a manufacturer of portable power tools; FLEX is wholly owned by Porter-Cable

May 20, 1996

Ranked by IndustryWeek magazine among the 1000 largest industrial manufacturing companies in the world

March 1, 1996

Listed on New York Stock Exchange

January 23, 1996

Acquired Aplex, a manufacturer of reciprocating pumps; Aplex is wholly owned by F.E. Myers

November 1, 1995

Acquired Biesemeyer, a maker of precision woodworking accessories; Biesemeyer is wholly owned by Delta International

October 16, 1995

Acquired Fleck Controls, a maker of control valves for water systems

May 15, 1995

Reached $1 billion market capitalization

June 30, 1995

Completed divestment of paper businesses

January 1, 1994

Acquired Schroff, a manufacturer of electronic enclosures

December 31, 1989

Annual Sales exceeded $1 billion

December 15, 1988

Acquired Federal Cartridge Company, a sporting and law enforcement ammunitions manufacturer; and Hoffman Engineering Company, a maker of electrical enclosures

August 15, 1986

Acquired McNeil Corporation, comprising Lincoln Industrial, a manufacturer of industrial lubrication systems and equipment; Lincoln Automotive, a maker of vehicle service equipment; and F.E. Myers, a manufacturer of pumps and water handling systems

July 20, 1984

Adopted Pentair Code of Business Conduct

December 31, 1984

Ranked by Fortune magazine among the 500 largest industrial companies in the United States

April 12, 1984

Acquired Delta International Machinery Corp., a manufacturer of woodworking equipment

October 19, 1981

Acquired Porter-Cable Corporation, a manufacturer of portable electric power tools

October 17, 1978

Made decision to diversify outside of paper manufacturing

April 3, 1972

Acquired Niagara of Wisconsin Paper Corporation

June 3, 1968

Entered paper business with purchase of Peavey Paper Mills

December 6, 1966

First public offering of shares

August 31, 1966

Incorporated

July 6, 1966

Founded