Water Filter Housing
Whether you're protecting your home’s drinking water system or managing filtration in a large industrial setup, the right water filter housing ensures pressure resistance, leak prevention, and system longevity.
- Manufactured in Ambattur, Chennai
- Sized to your site and water
- Installation and service support
What Is a Water Filter Housing?
A water filter housing is a pressurized outer shell that holds your filtration cartridge while connecting seamlessly with your plumbing. It ensures clean, contaminant-free water and protects filter elements from damage caused by pressure, temperature, or UV exposure.
Key Components:
Head Assembly
Inlet/outlet ports (¼" to 1" NPT or push-fit)
Filter Bowl
Clear or opaque casing that holds the cartridge
Sealing System
O-rings (Buna-N, EPDM) for a watertight seal
Types of Water Filter Housings
Not suitable for carbon filtration. Designed for sediment only.
Industrial RO housings (stainless steel) can handle up to 500+ PSI.
Standard Spin-Down Filter Housings
Best For: Whole-house sediment filtration
Flow Rate: 5–20 GPM
Reverse Osmosis (RO) Filter Housings
Application: Residential and commercial RO systems
Pressure Rating: 150–300 PSI
Jumbo (Big Blue) Filter Housings
Use Cases: Villas, apartments, and commercial units
Stainless Steel Filter Housings
Made From: 304 or 316 stainless steel
Ideal For: High-pressure, high-temperature, or chemical-heavy environments
UV Filter Housings
Features
- Manual flush valve for quick cleaning Available in 10", 20", and 4.5" Big Blue sizes Most economical option ($20–$150)
Features
- Color-coded stages (White = Sediment, Black = Carbon, Blue = Membrane) Reinforced for membrane use Annual membrane replacement required
Benefits
- Larger diameter (4.5") for high-flow systems (up to 20 GPM) Reduces filter change frequency Compatible with 10" or 20" jumbo cartridges
Benefits
- Withstands -40°F to 400°F
- Acid- and chlorine-resistant (316 grade)
Critical Components
- Protects: Quartz sleeves and UV lamps in disinfection systems
- 304 or 316 stainless steel body
- IP68 waterproof rating
Sizing Guide
| Flow Rate | Flow Rate | UV Lamp Wattage |
|---|---|---|
| <5 GPM | 1/2" ports | 15W |
| 5-12 GPM | 3/4" ports | 25W |
| 12-30 GPM | 1" ports | 55W |
Installation & Maintenance Guide
1
2
Shut off water and release system pressure
Mount bracket to wall or floor securely
Wrap inlet/outlet threads with 3 layers of Teflon tape
Hand-tighten housing, then ¼ turn with wrench
Slowly repressurize and check for leaks
Stainless steel industrial bodies
RO membrane housings
Big Blue filter housings
10" and 20" standard housings
Residential Water Purification
Commercial Buildings & Apartments
Industrial Filtration Systems
RO + UV Water Purifiers
Pharmaceutical & Chemical Manufacturing
3
4
4
5
| Housing Size | Hand Tight Troque | Wrench Tight |
|---|---|---|
| 10-inch | 12 ft-lbs | +1/4 turn |
| 20-inch | 15 ft-lbs | +1/4 turn |
Water Filter Housing Replacement
We offer replacements for:
Applications
Stainless Steel vs. Plastic Filter Housings
| Feature | Stainless Steel | Plastic (Polypropylene) |
|---|---|---|
| Durability | 15–20 years | 3–5 years |
| Temp. Resistance | -40°C to 120°C | 5°C to 45°C |
| UV Resistance | Excellent | Low (clear bowls degrade faster) |
| Cost | High | Budget-friendly |
How to Choose the Right Housing?
Connections
NPT Thread, John Guest push-fit, or Tri-clamp (for sanitary setups)
Pressure Rating
Min 100 PSI for home, up to 1,000 PSI for industrial systems
Material
Polypropylene (budget/residential), Stainless Steel (durable/industrial)
Size
Choose 10", 20", or Jumbo based on flow demand
Maintenance Schedule
Monthly
Visual check for cracks; O-ring inspection & lubrication (food-grade)
Quarterly
Sanitize housing with 3% hydrogen peroxide; test flow performance
Annually
Replace O-rings and cartridge filters; pressure test at 150% operating PSI
Every 5 Years
Replace clear plastic bowls (even if undamaged) for safety
Choose with confidence
Choosing the right filter housings and spares
- Confirm the flow rate and working pressure of the line.
- Pick the cartridge length and diameter (10", 20", jumbo) the system uses.
- Choose PP housings for general water and SS for hot, high-pressure or hygienic duty.
- Check inlet and outlet thread sizes before ordering.
- Keep a set of spare cartridges and O-rings on site.
Shop
Filter Housings & Spares you can order online
Prices and stock shown in the shop. For bulk orders or help choosing, ask us.
How we work
From first message to running system
- 01
Tell us the need
Share your requirement, site details and any water report or photos.
- 02
We review and size
We ask the right questions and size the system for your site.
- 03
Clear quotation
You get a quote with scope, specification and timelines.
- 04
Build, install, support
We manufacture, install, commission and stay available for service.
Related solutions
More in Filter Housings & Spares
Questions, answered
FAQs about Water Filter Housing
Still unsure? Ask us directly or call +91 95000 55565.
Can water filter housings be used outdoors?
Yes, but only if UV-resistant materials are used (opaque or stainless steel), and insulated in cold climates.
Why does a new housing leak?
Most leaks are due to missing Teflon tape, cross-threaded fittings, or damaged O-rings.
How often should I replace my filters?
• Sediment filters: every 3–6 months
• Carbon filters: every 6–12 months
• RO membranes: every 12–24 months
What micron rating should I use?
For RO pre-filtration 5 micron is common; sediment pre-filters often use 20 to 50 micron. The right rating depends on your water and the equipment you protect.
When should I choose a stainless steel housing?
Use SS housings for higher pressures, hot water, hygienic applications or where the housing must last outdoors.
Can you make custom housings?
Yes. We make customised housings for special flow rates, cartridge counts and connections. Share the duty conditions and we will propose a design.
Do you supply RO spares?
Yes. Membranes, membrane housings, pumps, cartridges, valves and other RO spares are available. Share your plant details for a matching list.
How often should cartridges be changed?
When pressure drop across the housing rises or flow falls noticeably. In many systems that is every one to three months, but water quality decides.
What is an FRP vessel used for?
FRP pressure vessels hold sand, carbon, iron removal media or softener resin. They are corrosion resistant and come in standard sizes with top or side openings.
Start a conversation
Tell us what you need
Share a few details about Water Filter Housing and your site. We reply on working days with questions or a quote.
Talk to a person
Speak with the Greenly team
No call centre. Your message reaches the people who design and build the system.
- +91 95000 55565
- WhatsApp +91 95000 55565
- greenly@greenly.co.in
- 101, 102 & 103 Tass Industrial Estate, SIDCO Industrial Estate, Ambattur, Chennai 600058
Visits by appointment - Open 10:00 am – 5:30 pm