Buy four Renuzit Adjustables at Dollar Tree and use a new buy three get one free coupon. The final price is $0.75 per air freshener!

Remember, inventory varies from store to store.

Use one B3G1 Free – Renuzit Adjustable Air Freshener (coupons.com)

Final Price: $0.75 each, when you buy 4

Note: The coupon does state "Redeemable at Walmart" on it. This is a marketing suggestion. The coupon is a manufacturer coupon and can be used at Dollar Tree.