As one of its daily deals, Amazon takes up to 35% off
a selection of 3M water filters
. (You can take an extra 5% off
select items by checking out with Subscribe & Save.) Plus, Prime members bag free shipping
on all orders. (Non-members qualify for free shipping on orders of $35 or more; items under $35 receive free shipping via Subscribe & Save.) Deal ends today. A couple of best bets:
If you're using Subscribe & Save, be sure to cancel your subscription once your order ships to avoid being billed for further shipments.