Reverse Osmosis Replacement Filters for 5 Stage RO System (4PCS)

Description

Why Replace Your RO Filters Regularly?

Over time, your reverse osmosis filters get clogged with sediment, chlorine, and other contaminants. When that happens, your water quality drops — and so does your system’s performance. This 4PC replacement filter set makes it easy to keep your 5-stage RO system working the way it should.

One kit. Four filters. Clean water again.

What’s Included in This 4-Piece Set

1. Polypropylene Sediment Filter – 5 Micron

This is your system’s first line of defense. It catches the stuff you can actually see — sand, silt, rust, dirt, and scale — before they reach your more sensitive filters. Built with 4-layer polypropylene construction for better filtration and longer life.

• Micron rating: 5 (Nominal)
• Works with both municipal tap water and well water
• Operating temperature: 40°F to 145°F (4.4°C to 62.8°C)
• Filter media: Polypropylene
• Certified: NSF 42 and FDA CFR Title 21

2. Coconut Shell Carbon Block Filter

After sediment is removed, this carbon block filter goes to work on chlorine, bad taste, and odors. Made from high-quality coconut shell carbon — known for superior absorption compared to standard carbon. If your tap water smells or tastes off, this filter is doing the heavy lifting.

• Service life: Up to 3,000 gallons at 1 GPM
• Outer netting: Polypropylene
• Filter media: Coconut shell activated carbon

3. GAC Granular Activated Carbon Filter (Coconut Shell)

The GAC filter is your second carbon stage. It removes VOCs (volatile organic compounds), residual chlorine, and anything that affects how your water smells or tastes. The granular design allows more contact time with the water, making it especially effective at improving overall water quality.

• Targets: Chlorine, VOCs, taste and odor issues
• Filter media: Granular coconut shell activated carbon

4. Post Inline Granular Activated Carbon Filter – 2″ x 10″

This is the final polish. After water passes through the RO membrane, this post-filter refines the taste one last time before it reaches your glass. It’s also commonly used with ice makers, refrigerators, drinking fountains, and countertop coolers.

• Removes: Chlorine, bad taste and odor, turbidity, THMs, dirt, sediment
• Micron rating: 10 (Nominal)
• Female NPT connection: 1/4″
• Dimensions: 10⅝” x 2″
• Weight: 13 oz
• Operating temperature: 40°F to 125°F
• Filter media: Coconut base carbon
• Filter life: 1,500 gallons
• Note: 1/4″ fittings not included

When Should You Replace These Filters?

Every 12 months or 1,500 gallons — whichever comes first. Mark your calendar when you install them. Most people find an annual swap is enough for everyday household use.
Skipping filter changes leads to slower flow, worse taste, and reduced effectiveness. A quick yearly replacement keeps everything running smoothly.

Fits Most Standard 5-Stage RO Systems

This set is designed for standard 5-stage under-sink reverse osmosis systems. If you already own a 5-stage RO unit, there’s a very good chance these filters are compatible. Always double-check your system’s filter sizing before ordering.

 

Quick Specs at a Glance

Filter	Micron	Life	Key Benefit
Sediment (PP)	5	—	Removes sand, rust, silt
Carbon Block	—	3,000 gal	Reduces chlorine, odor
GAC Carbon	—	—	Improves taste, removes VOCs
Post Inline Carbon	10	1,500 gal	Final taste polish

Clean Water Shouldn’t Be Complicated

This 4-piece set gives you everything for a full annual filter change — no guessing, no mixing and matching parts from different brands. Just swap them out, and you’re good for another year.

Order today and get back to water that actually tastes clean.