Product review (3 stars): This product works great, but for one factor....
I gave this product a 3 star rating, but it's probably like a 3.5 star...  Why?  Well, it works perfectly with the Waste King unit.  It dramatically cuts down the noise and we've never had anything fly out of the disposal, but....  the thing is so tight that water often has trouble going down.  So, for example, you pour some waste veggies down, and turn on the water - the veggies don't have the weight to go through the flaps, so they sit there - water pools up, and you end up having to remove the Splash Guard by hand, let everything drain down, replace the splash guard, and then use the disposal.  In the world of splash guards, I guess some don't guard enough and allow extra noise and possibly some splashing to occur, while others let nothing pass through...  This would clearly be in the "Nothing passes through" category.  It's not a bad product, but you may need to trim the plastic "Lips" in order for it to work properly.