What Are Filter Housings?
If you're exploring water filtration for your home or business, you've likely come across the term filter housing. But what are filter housings, and why are they essential to a successful water filtration setup?
At Isopure Water, we help thousands of customers find the right filtration systems every year—and filter housings are one of the most important components we offer.
Understanding What Filter Housings Do
Filter housings are the protective casings that hold water filter cartridges in place. They provide the physical structure that channels water through the filter media inside. Whether you’re using sediment filters, carbon block filters, or reverse osmosis membranes, housings are what make it all work.
Think of them as the body around the brains of your filtration system.
Most housings have an inlet and outlet port, allowing water to enter, flow through the cartridge, and exit as filtered water. You can find them in homes, restaurants, labs, RVs, and anywhere clean water matters.
Types of Filter Housings We Carry
We stock a wide variety of filter housings to match different applications, including:
Standard Slim and Big Blue Housings
These are the most common residential water filter housings. We offer:
Big Blue housings allow higher flow rates and accommodate larger filter cartridges, ideal for high-demand applications.
Clear vs. Opaque Housings
Clear sumps make it easy to visually inspect your filter without taking it apart. However, opaque housings (usually blue or white) tend to offer higher durability in high-pressure situations.
Commercial and Industrial Housings
If you’re working with high pressure or volume, you might need:
- Stainless Steel Housings
- Cluster and Multi-Cartridge Housings
- Big Bubba Jumbo Housings
These are built to withstand tough conditions and provide long-term durability for light industrial use.
Choosing the Right Filter Housing for Your Needs
Not sure where to start? Here’s what we recommend looking at:
- Water Pressure & Flow Rate – Bigger housings reduce pressure drop at high flow rates.
- Application – Under-sink? Whole house? Commercial? The use case dictates the specs.
- Filter Compatibility – Make sure the housing fits your 2.5" or 4.5" diameter cartridges.
- Port Size – We carry options in 1/4", 3/8", 1/2", 3/4", and 1" NPT.
If you're still not sure which size is right for you, contact us at (714) 541-6600—we’re happy to help!
Shop Filter Housings at Isopure Water
We carry one of the most diverse collections of filter housings available online. Every product on our site is tested for performance and compatibility.
