BasideWT- Whole Home Water Filtration System & Replacement

Standard Whole House 2.5 x 20 Water filter housing replacement
PRODUCT PARAMETERS
- Product Name: Water filter housing
- Material: Plastic PP
- Size: 20''
- Inlet/Outlet: 3/4" 1''
- Connector Material: Brass, Plastic
- Product benefits: Reduces Sediment
- Special Features: 20'' Blue Housing, Blue Color
- Function: Remove Impurities
- Included components: Mounting bracket and key for replacing the cartridge
- Installation Type: Freestanding" or "Under The Sink
- Brand Name: BasideWT
- Packing: Standard Exportation Package
Is your home’s water pressure dropping? Are you noticing cracks or leaks in your filter canister? These are clear signs you need a reliable water filter housing replacement. A failing housing compromises your entire filtration system, risking water quality and potential water damage. For the common 2.5″ x 20″ standard whole-house size, finding a direct-fit, durable replacement is crucial. BasideWT’s engineered solution offers a perfect, worry-free swap. This guide will help you understand why a timely replacement matters and how to choose the best one.
Why Replace Your Filter Housing? The Risks of Waiting
Why should you act fast at the first sign of wear? A compromised filter housing is more than just an appliance part failure; it’s a weak link in your home’s water safety.
- Cracks and Leaks: Even a small crack can lead to significant water waste and property damage.
- Reduced Pressure: A damaged internal structure or clogged ports strangles your home’s water flow.
- Contamination Risk: Micro-fissures can allow unfiltered water to bypass the cartridge, defeating the entire system’s purpose.
However, a proactive water filter housing replacement restores system integrity. It ensures clean water flows freely and safely throughout your pipes.
The BasideWT 2.5” x 20” Direct-Fit Replacement: Engineered for Durability
Not all replacements perform the same. BasideWT designs its housing as a superior drop-in solution for your existing plumbing setup. We construct our housing with premium, FDA-compliant materials. It features robust, corrosion-resistant threaded inlets and outlets. The transparent, shatter-resistant polycarbonate bowl allows for easy visual inspection of the filter cartridge. Furthermore, the reinforced base ensures stable mounting. This direct-fit design makes the installation process a simple, tool-free task for most homeowners.



Easy Installation: Your Step-by-Step Guide
Worried about complex plumbing? Fear not. Replacing your housing is typically straightforward. Here is a simple guide:
- Shut Off & Depressurize: Turn off the main water supply and release pressure from the system.
- Remove Old Housing: Unscrew the old sump from the head.
- Clean & Inspect: Check the head and O-ring seat on your existing bracket.
- Install New Housing: Simply screw the new BasideWT housing onto the existing head.
- Insert Filter & Test: Place a new standard 20” filter cartridge inside, reseal, and slowly turn the water back on to check for leaks.
Specifically, ensuring the O-ring is lubricated and properly seated is the key to a leak-free connection. This simple filter housing replacement can often be completed in under 30 minutes.
Compatibility & Maintenance: Ensuring Long-Term Performance
Will this housing work with my system? Absolutely. The BasideWT unit is engineered to be universally compatible with all standard 2.5” x 20” filter cartridges. This includes sediment blocks, carbon blocks, and GAC filters.
For optimal performance, pair your new housing with a high-quality filter cartridge. Remember to change your cartridges on schedule—usually every 6-12 months. Interestingly, while the housing itself lasts for years, the regular cartridge change is the routine maintenance that keeps water pure. A periodic water filter housing inspection is also wise to catch any early signs of wear.
Whole House 2.5 x 20 Water filter housing replacement
How do I know my housing needs replacing?
Look for these signs:
- Visible cracks or bulging on the housing body.
- Leaks from the housing seam, head, or ports that persist after replacing the O-rings.
- Difficulty threading the bowl onto the head or it won’t seal properly.
- Stripped or cross-threaded connections.
- Significant mineral/scale buildup inside the head that can’t be cleaned.
What do I need to buy for the replacement?
Ensure compatibility by checking:
- Housing Size: Confirm it’s for a 2.5″ x 20″ (or sometimes labeled 20″ Big Blue) filter.
- Inlet/Outler Port Size: Most common are 1″ or 3/4″ NPT (National Pipe Thread Tapered). Measure or check your old housing.
- Mounting Style: Does it have a bracket for wall/floor mounting? Is it the same type?
- Optional but Recommended: Purchase a new housing wrench and a replacement O-ring/gasket kit for the filter head.
What tools do I need?
- Filter housing wrench (specific to 2.5″ housings)
- Adjustable wrenches or channel-lock pliers (use with care to avoid damage)
- Bucket & towels for spillage
- Teflon tape or pipe sealant (for threaded connections)
- Screwdriver (if bracket-mounted)
Why is it leaking after I installed the new housing?
Common causes:
- O-ring not seated/lubricated: Check it’s in its groove and lightly greased.
- O-ring damaged: Nicks or twists during installation cause leaks.
- Cross-threaded bowl: The bowl must start straight. Hand-tighten first.
- Threads on pipes not properly sealed: Ensure Teflon tape is applied correctly (clockwise, 2-3 wraps).
- Over-tightening: Can crack the housing or deform the O-ring.
FAQs
Choosing the perfect water treatment system depends on your specific water quality, household size, and needs. We make it easy with our 3-step process:
Water quality testing – analyze your water for contaminants, hardness, and other factors.
Personalized Consultation – Our experts recommend systems based on your results, budget, and water usage.
Customized Solution – From whole-house filtration to targeted solutions (e.g., RO for drinking water, softeners for hard water), we tailor the system to your home.
To determine your water flow rate in gallons per minute (GPM), follow these simple steps:
Prepare for Testing:
- Prepare for Testing:
- Ensure all water fixtures in your home are turned off
- Select the faucet closest to your main water supply line (usually the kitchen sink or an outdoor spigot)
- Conduct the Test:
- Fully open the selected faucet
- Time how many seconds it takes to fill a 1-gallon container
- Repeat the test 2-3 times for accuracy
- Calculate Your Flow Rate:
Use this formula: Flow Rate (GPM) = 60 ÷ Fill Time (seconds)Example Calculation:- If your 1-gallon container fills in 15 seconds
- 60 ÷ 15 = 4 GPM
For more precise measurements or whole-home flow rate analysis, contact our water system specialists. We can help you determine if your current flow rate meets the requirements for any water treatment systems you’re considering.

1. Check Multiple Fixtures
Test water pressure at different faucets, showers, and appliances (e.g., kitchen sink, bathroom sink, outdoor hose).
If only one fixture has low pressure, the problem is likely localized (clogged aerator, faulty valve, or pipe issue).
If all fixtures have low pressure, the issue is systemic (main supply, pressure regulator, or water heater).
2. Inspect the Aerator or Showerhead
Unscrew the faucet aerator or showerhead and check for mineral deposits, debris, or rust.
Soak it in vinegar overnight to dissolve buildup, then rinse and reattach.
3. Check the Main Shutoff Valve
Locate the main water shutoff valve (usually near the water meter or where the main line enters the house).
Ensure it’s fully open (turn clockwise to close, counterclockwise to open).
1. Activated Carbon Filters
- Removes:
✅ Chlorine & chloramines
✅ Bad tastes & odors (e.g., sulfur)
✅ Volatile Organic Compounds (VOCs)
✅ Some pesticides & herbicides
❌ Does not remove heavy metals, dissolved minerals, or microbes
2. Reverse Osmosis (RO) Systems
- Removes:
✅ Heavy metals (lead, arsenic, mercury, cadmium)
✅ Dissolved salts (fluoride, nitrates, sulfates)
✅ Microplastics & sediment
✅ Bacteria & viruses (if combined with UV)
✅ Chlorine & chemicals (with carbon pre-filter)
❌ May remove beneficial minerals (can be remineralized)
3. Water Softeners (Ion Exchange)
- Targets:
✅ Calcium & magnesium (hardness)
✅ Low levels of iron & manganese
❌ Does not remove bacteria, chlorine, or heavy metals
4. UV Purifiers
- Kills:
✅ Bacteria (E. coli, coliform)
✅ Viruses (rotavirus, hepatitis)
✅ Protozoa (Giardia, Cryptosporidium)
❌ Does not remove chemicals, metals, or sediment
5. Sediment Filters
- Removes:
✅ Sand, rust, dirt
✅ Large particles & silt
❌ Does not remove dissolved contaminants
6. Whole-House Filtration Systems
Combines multiple methods (carbon + sediment + UV) for broad protection.
- UV: Kills bacteria/viruses but doesn’t remove chemicals or particles.
- RO (Reverse Osmosis): Removes 95–99% of contaminants (heavy metals, dissolved salts) but requires electricity.
- Activated Carbon: Absorbs chlorine, odors, and organic compounds—ideal for pre-filtration.
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