Woder WD-G4-REP Advanced Filtration Cartridge (New WD-S-8K)

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.

Removal Capabilities: Woder’s Advanced Filtration cartridge WD-G4-REP (Replaces the WD-S-8K / WD-S-8K-REP / WD-Gen3) removes 99.9% of lead, heavy metals, chlorine, chromium 6, mercury, volatile organic compounds, carcinogens, and other contaminants, turbidity, odor and bad tastes. (claims tested by CLB Labs and are not certified by WQA)

The WD-G4-REP cartridge, also known as WD-G4-L or WD-G4-2512TC, is a single stage replacement cartridge for:

Woder WD-G4-DC Water Filter.
Woder WD-G4-JG Water Filter.

The WD-G4-L is the second (last) stage replacement cartridge for the following dual stage systems:

Woder WD-D-FRM-G4-DC Water Filtration System.
Woder WD-D-FRM-G4-JG Water Filtration System.
Woder WD-D-HM-G4-DC Water Filtration System.
Woder WD-D-HM-G4-JG Water Filtration System.
Woder WD-D-20M-G4-DC Water Filtration System.
Woder WD-D-20M-G4-JG Water Filtration System.

Cartridge lifespan: 1 year under warranty.

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 out contaminants down the drain.

Sediment Filter Cartridge (WD-20M-REP)

The WD-20M-REP is a 20-micron sediment filter cartridge for Woder pre-filters. It catches dirt, sand, and rust mechanically, with no chemical media, and shields the Gen4 stage behind it from abrasive buildup. It does not reduce chlorine or lead.

Compatible replacement cartridge

This cartridge replaces the one in the single-stage WD-20M-DC and WD-20M-JG filters. It is also the first-stage cartridge in the WD-D-20M-G4-DC and WD-D-20M-G4-JG dual-stage systems. It fits your existing housing, so you do not need a new system. See our inline sediment filters and under-sink sediment filters.

When and how to replace

Reduced flow is the clearest sign it is time. Well water and older plumbing need changes more often than municipal supply. Inline units use push-to-connect fittings, and under-sink housings unscrew. The cartridge lasts one year under warranty and is designed and packaged in the USA.

Frequently asked questions

Which Woder systems is this compatible with?

The inline (JG) and under-sink (DC) pre-filters listed above, with the same 20-micron media.

How often do I need to replace it?

It depends on your water. A drop in flow rate is the sign, and well water needs it sooner.