You can get promo codes for Shark vacuums at RetaiMeNot and DontPayFull. Other sites that carry Shark promo codes are Coupons.com and PromoPro. All these sites have a search bar where, when you type Shark vacuums, the promo codes available at the given time appear.
At RetailMeNot, a blue sticker hides the promo codes, with some parts visible. When you click on the sticker of the coupon code that interests you, you are directed to a different page where the code is revealed and you have the option to copy it. You can then paste the code at Shark Clean at checkout to get a discount.
At Dontpayfull, under an orange sticker with ‘show code’ written on top hides the promo codes. When you click on the sticker, a different page opens where you can copy the code and paste it at Shark Vacuum at checkout.
When you click on the blue sticker on Coupons.com, the link directs you to a page that indicates no code is required. You already get a discount for shopping on Shark Clean through coupons.com. The same process applies at Promopro, where you are directed to Shark Clean page. You get a discount for shopping through Promopro.