UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): February 1, 2011

Commission file number 000-04689

Pentair, Inc.

(Exact name of Registrant as specified in its charter)

Minnesota	41-0907434
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification number)
5500 Wayzata Blvd, Suite 800, Golden Valley, Minnesota	55416
(Address of principal executive offices)	(Zip code)

Registrant’s telephone number, including area code: (763) 545-1730

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

o     Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o     Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o     Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o     Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

ITEM 2.02 Results of Operations and Financial Condition

On February 1, 2011, Pentair, Inc. (the “Company”) issued a press release announcing its earnings for the fourth quarter and full year 2010 and a conference call in connection therewith. A copy of the release is furnished herewith as Exhibit 99.1 and incorporated herein by reference.

This press release refers to certain non-GAAP financial measures (adjusted operating income, adjusted operating margins, adjusted earnings per share and free cash flow) and a reconciliation of those non-GAAP financial measures to the corresponding financial measures contained in the Company’s financial statements prepared in accordance with generally accepted accounting principles.

The 2009 adjusted operating income, adjusted operating margins and adjusted earnings per share eliminate (i) certain expenses incurred to restructure certain operations of the Company by reducing capacity, closing facilities and reducing headcount as a result of the significant downturn in the global economy and (ii) charges related to intangible asset impairment. Management utilizes these adjusted financial measures to assess the run-rate of its continuing operations against those of prior periods without the distortion of these factors. The Company believes that these non-GAAP financial measures will be useful to investors as well to assess the continuing strength of the Company’s underlying operations in light of the downturn in the residential end markets.

The Company uses free cash flow to assess its cash flow performance. The Company believes free cash flow is an important measure of operating performance because they provide the Company and its investors a measurement of cash generated from operations that is available to pay dividends and repay debt. In addition, free cash flow is used as criterion to measure and pay compensation-based incentives. The Company’s measure of free cash flow may not be comparable to similarly titled measures reported by other companies.

The information contained in this Current Report shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”) or otherwise subject to the liabilities of that section, nor shall it be incorporated by reference into a filing under the Securities Act of 1933, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

ITEM 9.01 Financial Statements and Exhibits

(a)	Financial Statements of Businesses Acquired
	Not applicable.
(b)	Pro Forma Financial Information
	Not applicable.
(c)	Shell Company Transactions
	Not applicable
(d)	Exhibits
	The following exhibit is provided as part of the information furnished under Item 2.02 of this Current Report on Form 8-K:

Exhibit	Description
99.1	Pentair, Inc. press release dated February 1, 2011 announcing the earnings results for the fourth quarter and full year 2010.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, on February 1, 2011.

PENTAIR, INC. Registrant
By	/s/ John L. Stauch
	John L. Stauch
	Executive Vice President and Chief Financial Officer

PENTAIR, INC.

Exhibit Index to Current Report on Form 8-K
Dated February 1, 2011

Exhibit
Number	Description
99.1	Pentair, Inc. press release dated February 1, 2011 announcing the earnings results for the fourth quarter and full year 2010.