Discount Water Filters and Air Filters at Discount Filter

When we protect your filter purchase with our No Worries Guarantee, we mean it!

No Worries...
  • Your filters are guaranteed to be the right fit!
  • Our products are price match guaranteed!
  • Our customer service team is guaranteed to answer your call!
  • You’re guaranteed to find expert help!

Learn more about our No Worries Guarantee
Together we have donated 100,000,000 gallons of clean water
Clean water for you, clean water for them

Our dream is to help bring clean water to everyone in the world, but we need your help to do it. We have partnered with various charities to help bring clean water to communities in need, and donate money from every Tier1 brand order made on our site to help fund their efforts.

We recently achieved our goal of donating 100 million gallons of clean water around the world, and are excited to see that number grow.

The projects we fund bring clean water where it's needed most