Sincerely,/s/ Andrew SilvernailAndrew Silvernail/s/ Jeffrey Bucklew1/18/2012Acceptance of Employment OfferDateJeffrey Bucklew

Your annual base salary will be Three Hundred Fifteen Thousand Dollars ($315,000.00) payable on a biweekly basis at the rate of Twelve Thousand One Hundred Fifteen Dollars and Thirty Eight cents ($12,115.38) per pay period. You will be eligible for a review of your salary with consideration for an increase in March 2013. While we hope that you have a long and mutually beneficial relationship, your employment is considered "at will" and will not be for any fixed term or definite period and may be terminated by you or IDEX at any time.

You will be eligible for participation in our Management Incentive Compensation Plan (MICP), as established each fiscal year, which provides annual incentive earnings opportunity based on business unit and personal performance. Your MICP target level of incentive compensation will be Sixty Percent (60%) of your annual base pay in effect at the beginning of the plan year. The actual pay-out under the plan could be more or less than the target level and will depend on IDEX Corporation's performance and your performance. Enclosed is a copy of the current MICP Compensation Programs Booklet.

You will be eligible for the full range of benefits including: the IDEX Defined Contribution Retirement Plan, the IDEX 401(k) Savings Plan, medical and dental coverage, short-term and long-term disability coverage, and life insurance. Summaries of these benefit plans are enclosed.

Subject to approval from our Board of Directors, you will be eligible for equity grants beginning with the 2013 program cycle in the form of a combination of stock options and restricted stock shares under the IDEX Incentive Award Plan (lAP) at our annual grant as established each fiscal year. These annual awards for your position are currently targeted to have a value of Seventy Five Percent (75%) of base salary, Your actual award in any year is dependent upon current program design and your performance. This plan is designed to provide an incentive and reward to key employees who are in a position to make substantial contributions to the success of the company.

The initial price at which the option awards are granted will be the closing price of IDEX common stock on the grant date. Your options may be exercised after they become vested, and for a period of up to ten years from the date they were awarded. Currently, options vest at the rate of 25% per year.

Restricted shares of stock currently vest 100% on the third anniversary of the grant date; during this restriction period, you will receive dividend payments. Once the restriction period lapses, the stock certificates will be released to you and you will retain full ownership of the shares. Once vested, these shares will be considered taxable income to you, and you will be provided more information at that time regarding payment of withholding taxes, if applicable. Of course, you must remain employed by IDEX Corporation in order to achieve vesting for these lAP awards.