GE Ecolux 28-Watt 45.2-in Miniature Bi-Pin (T5) 4100 K Cool White Fluorescent Light Bulb (40-Pack) in the Fluorescent Light Bulbs department at Lowes.com
8 Watt / 20 Watt / 28 Watt T4 And T5 8w Fixture Led Tube With Fitting - Buy T4 And T5 Led Tube With Fitting,T8/t5 Fluorescent Lighting Fixture,T5 Fluorescent Lighting Fixture
GE Ecolux covRguard 28-Watt 48-in Miniature Bi-Pin (T5) 3500 K Bright White Fluorescent Light Bulb (40-Pack) in the Fluorescent Light Bulbs department at Lowes.com
4 ft. T5 fluorescent to LED conversion tube with G5 pins DE HO 28 watt | eBay
Westinghouse 700400 28 watt T5 Linear Fluorescent Mini Bipin 835 Light Bulb, Cool White - Pack of 6 - Walmart.com
Satco Part # S8132 - Satco 28-Watt 4 Ft. Linear T5 Miniature Bi Pin Base Fluorescent Light Bulb Neutral White (40-Pack) - Fluorescent Light Bulbs - Home Depot Pro
SYLVANIA 20990 - FP28/865/ECO - 28 Watt Fluorescent Tube - T5 Fluorescent - 6500K - 800 Series Phosphors - Case of 40 - - Amazon.com
Utilitech 28-Watt 46-in Miniature Bi-pin (T5) 3500 K Warm White Fluorescent Light Bulb in the Fluorescent Light Bulbs department at Lowes.com