CONSENT

                                   CONSENT

                                        Communication Cable, Inc.
                                        0000 Xxxxxxxxxx Xxxxx
                                        X.X. Xxx 0000
                                        Xxxxxxx, X.X. 00000

                               January 20, 1996

Pentair, Inc.
0000 Xxxxxx Xxxx X0 Xxxx
Xx. Xxxx, XX 00000-0000

Ladies and Gentlemen:

            We refer to the Confidentiality Agreement, dated as of 
December 13, 1995 (the "Confidentiality Agreement"), between Communication 
Cable, Inc. (the "Company") and Pentair, Inc. ("Pentair").

            In connection with the Company entering into an Agreement and 
Plan of Merger (the "Merger Agreement") with Pentair and Pentair Acquisition 
Corporation ("Pentair Subsidiary", a wholly-owned subsidiary of Pentair), 
providing for certain transactions, including the merger of the Company and 
Pentair Subsidiary at a price of $13.50 per share of the Company's common 
stock, and the entry into a Stock Option Agreement (the "Stock Option 
Agreement") granting an option to Pentair to purchase up to 300,000 
shares of the Company's common stock at $13.50 per share, the Company 
considered whether to grant its consent as required under the Confidentiality 
Agreement. In connection with the requested entry by the Company into the 
Stock Option Agreement, Pentair has given verbal assurances that the option 
provided for therein will not be exercised, or the underlying shares used, 
in connection with any attempt to block any Acquisition Proposal (as defined 
in the Merger Agreement) received by the Company from any other party which 
is higher than the Pentair proposal.

            The entry by Pentair into the Merger Agreement and the 
consummation of the merger contemplated thereby, and the entry by Pentair 
into the Stock Option Agreement and the exercise in full by Pentair 
of the option provided for thereby, are transactions which require the 
consent of the Company under Section 11 of the Confidentiality Agreement. 
The Company hereby consents to the entry by Pentair into the Merger Agreement 
and the Stock Option Agreement, and to the transactions contemplated thereby; 
provided,



however, that the Company expressly does not consent to any exercise of the 
option granted to Pentair under the Stock Option Agreement that would result 
in the direct or indirect ownership by Pentair of five percent (5%) or 
more of the voting common stock of the Company.

                                Very truly yours,

                                COMMUNICATION CABLE, INC.

                                By (Signature of Xxxxx X. Xxxx)
                                   Xxxxx X. Xxxx, President