Asked on Feb 24, 2018
How to turn Jacuzzi jets from yellow back to white?
by
Sally South
+5
My fiberglass Jacuzzi tub needs some help. The jets have turned an ugly yellow. I need some ideas on what to use to turn them back to white. Thanks! 
Go to your local beauty supply and purchase hydrogen peroxide creme. "Salon Care" is one name brand. Wear plastic gloves. Paint it on with an old small paintbrush, cover with plastic wrap, wait 24 hours, rinse off. Sometimes it requires a second try.
http://homeguides.sfgate.com/whiten-yellowed-plastic-tub-surround-34638.html
Toothpaste and an old toothbrush maybe?
replace them; normal aging factor for fiberglass;
..You could tape off the area around the jets, lightly sand the yellow parts for adherence, then spray with appliance white spraypaint. Also works on stained toilet seats