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Back to School Sale

Back to school sale, water filter pitcher in a dorm room
Back to School Sale · August 6 to 9

Cleaner Water for the School Year Ahead

Kindergarten lunchboxes, dorm room water bottles, and every routine in between. Every point of use system and replacement cartridge is 10% off, and adding a cartridge to your order bumps your system to 15% off.

Ends Sunday, August 9 at 11:59 PM ET · No code needed
Shop the Sale Build a Bundle
Dorms and rentals: countertop
Family kitchens: under sink
Fridge and ice makers: inline
10%

Off Every Sale System

Countertop, under sink, inline, faucet mount, pitcher, shower and bath. Pick your spot, we filter it.

10%

Off Every Cartridge

The smart week to stock the whole school year of replacements.

15%

Off Your System When You Bundle

Add a cartridge to your order and your system jumps from 10% to 15% off. Automatically.

Shop the Sale

Sale prices below reflect 10% off. Pair any system with any cartridge and the system recalculates at 15% off in your cart.

At the Tap

Faucet Mount

Add the cartridge and the system drops to 15% off

The fastest upgrade in the house. Six stages of filtration on the kitchen faucet, installed in minutes.

Faucet Mount Water Filter System, 6 stages Faucet Mount Water Filter System (6 Stages) from $34.95$31.46 Faucet Mount Filter Cartridge Faucet Mount Filter Cartridge from $29.50$26.55 Faucet Mount Filter Cartridge pack of two Faucet Mount Cartridge, Pack of 2 $57.98$52.18
For Bath Night

The Bath Ball®

Add the refill and the Ball drops to 15% off

Chlorine reduction for the tub, from toddler bath time to a long soak after practice.

Bath Ball Filter Bath Ball® Filter from $64.95$58.46 Bath Ball Replacement Cartridge Bath Ball® Replacement Cartridge from $39.50$35.55 Bath Ball Filter and replacement cartridge bundle The Bath Bundle: Ball + Refill $104.45$90.76 Adds both to your cart Bath Ball filter with school supplies Shop All Bath & Shower Every filter for the tub and shower, all 10% off. View the collection
For the Shower

Shower Filters

Better mornings start in the shower. Fixed, handheld, or the 2-in-1 combo, one for every bathroom.

Shower Filter Shower Filter from $40.95$36.86 Handheld Shower Filter Handheld Shower Filter from $61.95$55.76 2-in-1 Handheld and Shower Head Combo Filter 2-in-1 Handheld and Shower Head Combo from $79.95$71.96 Crystal Quest shower filter box with pencils Shop All Bath & Shower Styles, finishes, and replacements in one place. View the collection
For the Fridge

Pitchers and Cartridges

Add a cartridge and the pitcher drops to 15% off

Cold, filtered, ready to pour. Works as hard in a dorm mini fridge as it does at home.

Water Pitcher Filter System Water Pitcher Filter System from $39.95$35.96 Standard SMART Water Pitcher Cartridge Standard/SMART Pitcher Cartridge from $18.00$16.20 SMART Fluoride Removal Water Pitcher Cartridge SMART/Fluoride Removal Pitcher Cartridge from $21.00$18.90 Water pitcher and shower filter, back to school Shop All Pitchers Every pitcher and refill cartridge, all 10% off. View the collection

The Bundle Is the Move

Three steps, zero codes. This is how your system gets the full 15%.

Pick Any System

Countertop, under sink, inline, faucet mount, pitcher, shower or bath. Whatever fits your home.

Add Any Cartridge

Grab the replacement your system will want anyway. Future you says thanks.

Your System Drops to 15% Off

The cart recalculates on its own, and the cartridge keeps its 10%. No code, no fine-print hunting.

Point of Use Systems

Serious filtration, right where you drink. Every collection here is 10% off through Friday.

Under sink water filter system Under Sink Multi stage filtration, hidden beneath the sink. Shop Under Sink Countertop water filter system Countertop No plumbing changes. Perfect for dorms and rentals. Shop Countertop Under sink reverse osmosis water filter system Under Sink Reverse Osmosis Reverse osmosis, the deepest clean at the tap. Shop Under Sink RO Inline water filter system Inline Compact filtration for fridges, ice makers, and tight spots. Shop Inline

Stock Up on Cartridges

All 123 replacement cartridges are 10% off, and any cartridge in your order unlocks 15% off your system. Set the household up through spring.

Coconut based 5 micron carbon block filter cartridge Coconut Carbon Block Cartridge from $22.95$20.66 SMART Filter Cartridge SMART Filter Cartridge from $59.00$53.10 Pleated Cellulose Sediment Cartridge Pleated Cellulose Sediment Cartridge from $22.95$20.66 Standard SMART pitcher cartridge pack of four Pitcher Cartridges, Pack of 4 $68.95$62.06

Made in the USA since 1994 · ISO 9001 Certified Manufacturing · Real Expert Support

Sale runs Thursday, August 6 through Sunday, August 9, 2026 and ends at 11:59 PM ET. Discounts apply automatically in the cart to the categories shown on this page. Sale prices shown reflect 10% off the starting price of each product; cart totals are exact. When at least one filter cartridge and one sale system are in the same order, the system is discounted 15% and cartridges remain 10%. Not combinable with other automatic discounts; the best available discount is applied.