best discharge close off (blade blocker) for Toro walk behinds?

[pblawncare]

What is the best universal discharge shutoff/blade blocker for a Toro walk behind?

These are 52" belt driven machines

[Steve]

I did a quick look on ebay and found one here.

http://www.ebay.com/itm/Toro-Mower-Discharge-Chute-Retrofit-Kit-and-2-Shock-Valve-Kits-Toro-52-Mower-/330734139678

http://i.ebayimg.com/t/Toro-Mower-Discharge-Chute-Retrofit-Kit-and-2-Shock-Valve-Kits-Toro-52-Mower-/00/s/NTY0WDY0MA==/$%28KGrHqN,!lkE-do,Hc%29%29BPs+DbriDg~~60_3.JPG