Amazon has GE GE5070 Silicone 2+ Kitchen & Bath Sealant Caulk, 10.1oz, White for $2.98 when you checkout with Subscribe and Save. Shipping is free.
https://www.amazon.com/GE-Momenti…ial&s
For comparison, $6.78 at Lowe’s:
https://www.lowes.com/pd/GE-Silic…lk/3084969