Frequently Asked Questions
Everything you need to know about Shield Water Filter products and services.
How often should I replace my Shield Water Filter cartridge?
For optimal performance and safety, we recommend replacing your filter cartridge every 6 months or after filtering 300 gallons of water, whichever comes first.
Are Shield Water Filters compatible with all standard faucet types?
Our filters are designed to fit most standard aerator faucets. Each kit includes multiple adapters to ensure a leak-free fit for 95% of common household fixtures.
What contaminants do Shield Water Filters remove?
Our advanced multi-stage filtration technology is certified to remove 99% of lead, chlorine, mercury, and sediment, while retaining essential minerals for taste.
How long does shipping take for replacement filters?
Orders are typically processed within 24 hours. Standard shipping across the continental US takes 3 to 5 business days, and we offer expedited options at checkout.
What is your return policy if the filter doesn't fit my sink?
We offer a 30-day 'Perfect Fit' guarantee. If the filter is incompatible with your plumbing, you can return it for a full refund, and we will cover the return shipping costs.
Do you offer a subscription service for replacement filters?
Yes, our 'Shield Auto-Ship' program allows you to save 15% on every order. You can choose a delivery frequency that fits your household needs and cancel anytime.