EXHIBIT 23.3
 
                        CONSENT OF INDEPENDENT AUDITORS
 
  We consent to the reference to our firm under the caption "Experts" and to
the use of our report dated May 6, 1997 with respect to the combined financial
statements of Industrial Air Tool as of March 31, 1996 and 1997 and for the
years then ended, in the Registration Statement (Form S-4 No. 333-     ) and
related Prospectus of Rental Service Corporation for the registration of
$200,000,000 of its senior subordinated notes.
 
                                          /s/ ERNST & YOUNG LLP
 
Phoenix, Arizona
June 8, 1998