Amazon has 18-lbs. Arm Hammer SLIDE Platinum Multi-Cat Easy Clean-Up Clumping Cat Litter for $14.39 - $3.60 when you clip the 25% coupon on the product page - $0.72 (5%) when you check out w/ Subscribe & Save = $10.07. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter phoinix for posting this deal.

Note: You must be logged into your account. Coupons are typically one use per account. You have the flexibility to manage your Subscribe & Save subscription at any time after your order ships. View Subscribe & Save filler items and our current Subscribe & Save Frontpage deals to unlock up to an extra 15% savings when you have 5 or more items in your current monthly subscription.

Alternatively, Chewy has for First Time Autoship Orders: 18-lbs. Arm Hammer SLIDE Platinum Multi-Cat Easy Clean-Up Clumping Cat Litter for $14.39 - $5.04 (35% discount for first time Autoship orders) = $9.35. Shipping is free on $49+ orders.

Note: You may change or cancel your Autoship subscription anytime.