PWR04 ANNUAL FILTER KIT

🧾 What it includes (typical kit contents):

Most PWR04 / PWRO4 annual kits contain:

• Sediment pre-filter (removes dirt, rust, particles)
• Carbon block pre-filter (reduces chlorine, taste, odor)
• Inline GAC post-filter (final polishing filter for taste)
• (Sometimes) membrane included depending on kit version

🔧 What it’s used for:

This kit is used to:

• Maintain RO system performance
• Improve drinking water taste and odor
• Protect the RO membrane from sediment/chlorine damage
• Keep filtration efficiency within manufacturer specs

⏱️ Replacement schedule:

• Pre/post filters: usually every 6–12 months
• Membrane: typically every 2–3 years (varies by water quality)