EXHIBIT 23.7
 
                                                                [LOGO]
 
We hereby consent to (i) the inclusion of our opinion letter, dated February 14,
1998, to the Board of Directors of Zurn Industries, Inc. as Appendix C-2 to the
Joint Proxy Statement/Prospectus forming part of this Registration Statement on
Form S-4, and (ii) references made to our firm and such opinion in such Joint
Proxy Statement/Prospectus under the captions entitled "SUMMARY--Opinion of
Financial Advisor to Zurn," "THE TRANSACTION--Background," "THE
TRANSACTION--Recommendation of the Zurn Board; Zurn's Reasons for the
Transaction" and "THE TRANSACTION--Opinion of Zurn's Financial Advisor." In
giving such consent, we do not admit that we come within the category of persons
whose consent is required under Section 7 of the Securities Act of 1933, as
amended (the "Securities Act"), and the rules and regulations promulgated
thereunder, and we do not admit that we are experts with respect to any part of
the Registration Statement within the meaning of the term "expert" as used in
the Securities Act, or the rules and regulations promulgated thereunder.
 
                                          BT WOLFENSOHN
 
   
May 12, 1998