A:
Good Afternoon Anonymous,
The difference between the GRLP3 and GRLP4 conversion kit is that GRLP3 is recommended for ranges with 5 burners equaling a total of 10 orifices and GRLP4 for ranges with 6 burners equally a total of 12 orifices. From further research, the recommended conversion kit for this particular model is GRLP3.
Thank you for your question.