Polaris 3900 Chain Guard R0537800

I have an older Polaris 3900 Sport and recently the drive chain came off, causing the unit to be immobile. The pool supply store I use told me that newer models are equipped with a chain guard. I searched the Internet to find this part and came across Sunplay.com. The part was less expensive than other sites and their shipping fee was very reasonable. The part arrived within a week and Sunplay sent status emails so I knew what to expect. I was so satisfied that I ordered another to give to my local pool store so they could reference the part AND Sunplay!! Thank you!!!