Pet Treater is $24.99 a month with free shipping. Less if you sign up longer. These are the current coupons. One per subscription.
Use code PT-3PACK for a free 3 Pack of Loofah style dog toys.
Or use code FREEPT-BED for a free pet bed with a 3 month or longer subscription.
They measure 14 inches with a squeaker. Colors will be random.