H2-whoa: Brita water filters, pitchers and bottles are up to 40% off at Amazon

Scuzzed-up bathroom? Grimy tiles? Never fear, the Khelfer is here. 

'Tis the season for frigid feet — unless you have this No. 1 bestselling space heater at the ready. Small, yet mighty, this toasty appliance can warm up to 200 square feet of space in mere seconds, has two heat levels and even doubles as a fan come summer! Get it for 45% off.

You know what they say — you snooze, you lose! Don't let this dreamy discount disappear into the night. 

Using a filtered pitcher can help prevent you from drinking water that's laden with impurities. This popular BPA-free Brita reduces copper, cadmium and mercury levels for better-tasting H2O, in addition to minimizing the taste and odor from chorine. Its 6-cup capacity is on the smaller size, meaning it won't take up much room in your fridge, and it'll alert you when it's time to swap out the filter. At nearly 40% off, this is as good a price as we've seen.

"This water filter pitcher is perfect for my family of four," wrote a shopper. "It has saved us money because we no longer have to buy as many bottled waters. I was literally buying four cases of 48 bottles of water every two weeks, and now I'm only buying two cases. This is a must-have. It is easy to clean and the filter lasts two months. The flow rate is smooth. This pitcher fits perfectly in our refrigerator."

If you and your family guzzle H2O like it's your job, you're gonna need a bigger boat — er — pitcher, like this 10-cup behemoth. It holds enough water to fill up three 24-oz bottles and comes with the Brita Elite filter, which reduces 99% of lead, chlorine (taste and odor), cadmium, mercury, benzene, asbestos and more. Plus, you only need to replace this filter twice a year! Get it in black, blue or white, too. 

Enjoy cleaner water straight from the tap with this sink filter, which is easy to install without the need for tools. It reduces up to 99% of contaminants like lead, chlorine (taste and odor), asbestos, particulates and Benzene, and you'll even get three replacement filters with this deal. 

You're going to need replacement filters for your pitchers — and these top-sellers were purchased over 9,000 times in the past month alone.

"I have tried all the off-brand filters, and they do not compare to the ability to filter water and make [it as] drinkable as Brita does," noted a reviewer. "This particular one works perfectly, removes all the chlorine and the stale, fishy substances out of the water, and makes it drinkable and taste clean. It also reduces some of the excess calcium."