FBO31/830 - 31 Watt Fluorescent U-Shape T8 Bulb, 22.5 In. Long and 1.5 In. Leg Spacing, 3000K -
GE Mod-U-Line 6 in. Spacing Ecolux 32-Watt 24-in Medium Bi-pin (t8) 3000 K Warm White Ubend Fluorescent Light Bulb (12-Pack) in the Fluorescent Light Bulbs department at Lowes.com
Philips 32-Watt Equivalent U-Bend Linear T8 Type A InstantFit Daylight LED Tube Light Bulb (5000K) 544882 - The Home Depot
Philips 40-Watt 4 ft. Linear T12 U-Bend Fluorescent Tube Light Bulb Bright White (3500K) (1-Bulb) 562966 - The Home Depot
LED U-BEND REPLACEMENT TUBE | U-Bend Bulb | Fluorescent Replacement
General 00860 - FUL8T6/CW U Shaped T6 Fluorescent Tube Light Bulb - Walmart.com