Do new "o-rings" come with the filter kit? If not, what is the part number for the "o-rings" and where do you order them?

The O rings do not come with the replacement filters, you need to buy them from Water Express.

So the pentek, ispring, express, igeek and ect. filters will "all", work as long as the housing is 4.5 x 20"? but filter quality is diff?

Well dont know all those but If the housing is the same it should. I had ispring setup and just upgraded the filters to heavy metal filter set and they are great! No issues. Hope that helps

how to open the blue housing ? no matter what I tried I can not open the blue houseing to replace the filter

You first have to shut the water off to the system...Next you have to release the pressure in the system, there should be a red button on top of the system press that button and watch the pressure drop on the gauge..Note there will be some water so have a towel ready ..Next use the wrench that came with the system when you bought it ... It looks like a small tennis racket with no strings...slide that up the blue tube and spin it off....Note that the first time I had to change the filter the blue tube was on very tight ,so take your time and be careful....Hope I was able to help....

Will these cartridges fit the ISpring big blue system that uses the 4.5" x 20" filter cartridge?

Yes they will. Cartridge should say in details what size they are. I have used them in mine. Personally tho I feel the original name brand ones are better quality.

Desertcart Logo

Deliver to Netherlands

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Description

💧 Elevate your home’s water game with pure, powerful filtration!

PRESSURE PERFECT - High-capacity filters maintain strong water flow without loss.
WHOLE HOME PURITY - Advanced 3-stage filtration cleans every drop entering your house.
HEAVY METAL DEFENSE - KDF media targets lead, iron, chromium & more for safer water.
EFFORTLESS MAINTENANCE - Quick-swap cartridges keep your system running smoothly.
LONG LASTING PERFORMANCE - Filters up to 100,000 gallons, saving time and replacement costs.

The Express Water Whole House Heavy Metal Water Filter Set features a robust 3-stage filtration system combining sediment, carbon block, and KDF media to reduce heavy metals and impurities throughout your entire home. Designed for longevity, it filters up to 100,000 gallons while maintaining water pressure. Easy-to-replace cartridges ensure hassle-free maintenance, protecting your family, appliances, and pets with every drop.

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

ChatGPT - opens in a new tab Perplexity - opens in a new tab Claude - opens in a new tab Grok - opens in a new tab Google AI - opens in a new tab

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

View all Trustpilot reviews

Brand	Express Water
Model Number	FLTWH2045CKS1
Color	White
Product Dimensions	11.43 x 11.43 x 50.8 cm; 7.71 kg
Material	Polypropylene (PP)
Item Weight	7.71 Kilograms

Express WaterWhole House Heavy Metal Water Filter Set – 3 Stage Water Filtration Replacement Kit – Sediment, Carbon Block, KDF High Capacity Cartridge Filters – 5 Micron Water Filter 4.5” x 20” inch

Details

Description

Specifications

Have a Question? See What Others Asked

Common Questions