Product review (1 stars): Terrible quality. Don't waste your money.
Don't buy these! The porcelain coating is paper-thin compared to the ones that they are supposed to replace. I bought two of them and both were like this. After the second use the porcelain started literally exploding off of the grates from the heat. One piece actually hit me in the eye!! Luckily there was no damage to my eyesight. I've had these replacement grates for 3 months now and almost all of the coating has flaked or popped off where the grates are exposed to the gas flame.