Use this $1/1 Renuzit Super Odor Neutralizer coupon to get the adjustable cones for free. You can find them on sale for just under $1 at Walmart. Although, you may want to check your grocery store as well. I found them at one of my local stores for just $1 as well. Although the coupon shows the picture of the spray, it is good on any Super Odor Neutralizer product.