Waterdrop

Waterdrop RC 1 EZ-Change WFQTC30001 WFQTC70001 Basic Water Filtration Replacement Replacement for Culligan IC-EZ-1 US-EZ-1 RV-EZ-1 Brita USF-201

4.6(650)

225+ bought in the past month

$28.99

About this item

【Fits the following models】: Culligan RC-EZ-1, US-EZ-1, RV-EZ-1, DuPont WFQTC30001 (3000 QT) , WFQTC70001 (7000 QT), Brita USF-201, USF-202, USF-203.
【Efficient filtration】: With supreme coconut shell carbon block, Waterdrop filter can effectively reduce chlorine, heavy metals like taste and odor, sediment, rust, Turbidity, Particulate Class I. The high impurities reduction rate ensures that the water we give to you is clean and healthy.
【Food-grade plastic housing】: Waterdrop uses food-grade plastic housing to free you from worrying about impurity leaching back to your water.
【Stable flow rate】: The fast yet stable water flow is another advantage for further filtration.
【New upgrade & Long service life】: After advanced upgrade, the model number is changed from WD-RC-EZ-1 into WD-W33Z1. Enjoy refreshing taste by changing your filter every 12 months or 3,000 gallons. Still, it depends on your local water quality.
Connected with the cold water valve only! This filter does not reduce TDS!

$28.99

In Stock

Delivery — Estimated 3–5 business days · Final delivery speed and cost are confirmed at checkout

Easy Returns · 30-day window

This order is a gift

In Stock

Secure Checkout

Free Returns

30-Day Guarantee

Secure checkoutAll transactions are SSL-encrypted. Your payment info is never stored.

Free returnsReturn or replace within 30 days

Fast deliveryOrders ship within 1 business day and arrive in 4–8 days.

Buyer protectionIf your order arrives damaged or doesn't show up, we'll make it right.

24/7 supportOur team is here to help. Reach us anytime by email or chat.

Ships fromOur Warehouse

Sold byLifetech Filter

Returns

Easy Returns30-day return window

PaymentsSecure transaction

Currently unavailable

Easy Returns · 30-day window

Product details

Material	Carbon,Coconut Shell
Item Weight	1.8 Pounds
External Testing Certification	IAPMO, ANSI, NSF
Product Benefits	Reduces Odor, Taste and Chlorine
Brand	Waterdrop

Technical specifications

material	Carbon,Coconut Shell
item_weight	1.76 pounds
external_testing_certification	IAPMO, ANSI, NSF
product_benefits	Reduces Odor, Taste and Chlorine
brand	Waterdrop
set_name	RC 1 EZ-Change
upc	840814140048
unit_count	2.0 Count
compatible_water_purifier_models	Culligan US-EZ-1
number_of_items	2
package_dimensions	10.63 x 5.43 x 2.72 inches
manufacturer	Waterdrop
item_model_number	WD-W33Z1
best_sellers_rank	#34,069 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #255 in Replacement Under-Sink Water Filters
is_discontinued_by_manufacturer	No
date_first_available	December 15, 2017

From the brand

Product videos

Product video 1

Customer reviews

4.6650 ratings

Customers say

Customers find the water filter fits perfectly, particularly with Dupont 3000qt final filters, and appreciate its effectiveness in purifying water. Customers disagree on the filter's longevity compared to brand-name alternatives.

★★★★★

Perfect Dupont Replacement

dinodgr—February 17, 2026✓ Verified purchase

I needed a filter to replace my Dupont Carbon 3000 QT filter. This filter worked and fit perfectly. I had tried another brand that supposedly was a direct replacement but it did not fit. These filters do! Read more

★★★★★

Easy Install & Great Water Taste!

Mandy J—August 14, 2025✓ Verified purchase

This Waterdrop filter is a perfect replacement—snaps right into place with zero hassle. The installation took less than two minutes, and I noticed the improvement in water taste immediately. No more chlorine smell, and the water is crisp and clean. It lasts a long time between changes, and the price is great compared to OEM filters. I’ll definitely keep buying these! Read more

★★★★★

It works and fits well

JJ—November 23, 2025✓ Verified purchase

Good DuPont replacement Read more

★★★★☆

must replace mine at 2 months

Vicki—January 15, 2026✓ Verified purchase

First of all, the water through this filter is very clear and good tasting. I like that it uses coconut charcoal. For water, I have a 20' point and the water is good, but does have some light talons. These filters are advertised to change every 12 months! But, I have to change mine every 2 months, as it goes down to just a dribble coming out, gets 4 stars. Wondering if anyone else has this issue. Read more

★★★★★

Easy to install

Customer—January 9, 2026✓ Verified purchase

Easy to install Read more

★★★★★

Exactly what I needed

Leanne Knox—February 4, 2026✓ Verified purchase

perfect, thank you Read more

★★★★★

Fit perfectly

Daniel L Gall—January 18, 2026✓ Verified purchase

Fit perfectly Read more

★★★★★

Great value for the price

Roy—May 28, 2025✓ Verified purchase

Perfect fit for our water filter. Great price and always quick delivery. Read more