Woder Advanced Water Filter WD-G4-JG

WQA-Certified Woder Advanced filters are certified by WQA to NSF/ANSI 42 for Chlorine taste, odor and NSF/ANSI 372 for lead free compliance as verified and substantiated by test data.

Woder WD-G4-JG Inline Water Filter – Experience the Power of Selective Filtration and the Taste of Mineral Water.

One of the key advantages of the Woder WD-G4-JG inline water filter is its ability to enhance the taste of your water. A delightful mineral water experience. Unlike traditional water filters that strip away all minerals, this system retains the essential minerals, such as calcium and magnesium. That contribute to the refreshing taste of mineral water. Every sip becomes a satisfying and invigorating experience for your senses.

Easy Installation and Long-Lasting Performance

Installing and maintaining the Woder WD-G4-JG Water Filtration System is a breeze. The system is designed for easy installation in no time. With its long-lasting WD-G4-REP cartridge, you can have peace of mind knowing that your filtration system will continue to perform optimally with minimal maintenance.

Robust 1-year warranty

This way we ensuring your peace of mind and satisfaction with our products. Moreover, our commitment to quality means that in the unlikely event of an early expiration, we provide hassle-free replacements.  That guaranteeing that you receive the full value and longevity you deserve. With Woder, you can trust in our dedication to customer satisfaction and enjoy worry-free ownership of our exceptional products.

Our Advanced filtration (Gen4) is for homes with whole house sediment filtration system OR with low sedimentation levels.

Removal Capabilities: Our advanced filter removes PFAS, 99.9% of lead, heavy metals, chlorine, chromium 6, mercury, volatile organic compounds, carcinogens, and other contaminants, turbidity, odors, and bad tastes (claims tested by CLB Labs and are not certified by WQA).

Product Dimensions
15.4″ X 3.6″ X 2.52″

Cartridge lifespan: 1 year under warranty.

System includes: WD-G4-REP cartridge, head with a built-in shut off valve, 2 X John Guest Quick Connect fittings on both sides. Woder WD-G4-JG is an inline water filter that fits All 1/4″ Plastic Flex Tubing and Flexible Copper Tubing. (Used for water supply to ice makers and refrigerators, etc.). 1/4” JG also fits the 1/8″ PEX TUBING as its O.D. is the same as 1/4” Tube. DOES NOT FIT BRAIDED HOSES

Selective Filtration™
Our proprietary Selective Filtration™ technology removes 99.9% of contaminants while leaving in all essential minerals. Reverse Osmosis (RO) filters also remove 99.9% of contaminants, however, RO also remove ALL the minerals found in tap water – including minerals your body needs. RO systems can waste thousands of gallons of water annually while flushing contaminants down the drain.

Preventing Sediment Buildup
If your water supply contains elevated levels of sediment, a dual-stage Sediment Removal Filter System is recommended to prevent decreased filter life due to particulate buildup within the filter. Rust from old plumbing, upstream construction contributing to excess sediment finding its way into your water supply, and water supplies with high levels of sand and contaminants can all result in water conditions not suitable for a single-stage filter system.

Inline Water Filter for Ice Makers & Refrigerators (WD-G4-JG)

If your ice tastes off or your fridge dispenser has that flat, chlorinated edge, the WD-G4-JG is our most popular cartridge for fixing exactly that. It’s a single-stage unit running on Gen4 Advanced Selective Filtration media, built to sit on your fridge or ice-maker line and pull out what’s affecting taste while leaving the minerals that actually give it its character. It’s the model we point most customers toward first, since it handles the two appliances people care about most, the icemaker and the chilled dispenser, from a single cartridge rather than needing separate units for each.

Easy Installation and Portability

Getting it installed doesn’t require a plumber or any real tooling. It connects with John Guest quick-connect fittings on standard quarter-inch tubing, the same setup most refrigerators already run. Line the tube up, push it into the fitting, and you’re done, typically in five minutes or less. Installs go about as close to plug-and-play as filtration gets, and the cartridge itself is built to keep running reliably for months before a swap is needed. There’s nothing to wire, glue, or seal, and no cabinet space to carve out, the whole unit sits inline on the existing tubing behind or beside the appliance.

Warranty and Portability Across Appliances

Every WD-G4-JG ships backed by a one-year warranty, so if something’s not right, we stand behind it. It’s also genuinely portable: this ice maker and water filter setup that works on your fridge today can move to an RV or a different line tomorrow, since it’s not hardwired into your plumbing, just unclip it and reconnect it wherever the same quarter-inch fitting exists. That flexibility is part of why this water filter ice maker model shows up in so many different households and use cases, from a kitchen fridge to a travel trailer’s galley to a standalone icemaker in a bar or break room.

PFAS and Contaminant Removal

PFAS removal capability deserves its own mention here, not just a line on a spec sheet. These “forever chemicals” have become a real concern in municipal supplies across the country, and Gen4 Advanced media is built to reduce them along with lead and chlorine, all through Selective Filtration mineral retention rather than a membrane that would also strip out beneficial minerals. If PFAS is a specific concern in your area’s report, this inline ice maker water filter addresses it directly rather than as an afterthought, and it does so without the wasted output a membrane-based system would produce. A water filter with ice maker hookups built this way gives you broad contaminant reduction and a taste upgrade in one pass, rather than making you choose between them.

Compatibility

On the 1/4-inch water supply line side, this cartridge is built for standard quarter-inch push-to-connect tubing, which covers most refrigerators, dedicated ice makers, and RV systems, giving it solid refrigerator water line compatibility out of the box. It won’t fit braided steel supply hoses or larger-diameter lines without an adapter, so it’s worth double-checking your existing tubing before ordering. Any ice maker water filter system running quarter-inch JG-style fittings is a safe match. This cartridge is designed and packaged in the USA. Replacement cartridges for this model are available in our Replacement Cartridges category.

Frequently Asked Questions

What is an inline water filter for an ice maker?

It’s a single-stage cartridge that connects directly to the line feeding your ice maker or refrigerator, treating it right at that point rather than your whole home’s supply.

How do I install an inline ice-maker/refrigerator water filter?

It uses quick-connect fittings on standard quarter-inch tubing, so installation is as simple as pushing the line into the fitting, no tools, wrenches, or thread sealant required.

Will this fit my refrigerator’s water line?

It’s built for standard quarter-inch tubing with push-to-connect fittings, which most refrigerators and ice makers use. It won’t work with braided steel hoses without an adapter.

What is a quick-connect water filter?

It’s a cartridge that installs by pushing the line into a fitting rather than requiring threading, soldering, or sealant, making the whole process fast and tool-free.

Does this filter remove PFAS?

Yes. Gen4 Advanced Selective Filtration media is built to reduce PFAS along with lead and chlorine, while leaving beneficial minerals like calcium and magnesium intact.