Seagull IV RS-1SG Replacement Cartridge for X-1 Series Purifiers

Overview

The RS-1SG replacement cartridge from Seagull IV is designed for the X-1 Series water purifiers used on RVs and marine setups. It combines a straightforward, DIY-friendly replacement with a long-lasting capacity, helping you maintain reliable access to purified water on the go. The self-indicating feature helps you know when it’s time for a swap, supporting smoother maintenance routines and less guesswork.

Engineered for daily use, this cartridge operates at about 1 gallon per minute, making it easy to fill a glass, pitcher, or coffee carafe without waiting. With an average lifespan around 1000 gallons per cartridge, you can plan replacements around your typical travel schedule or boat sailing days. California residential models should order RS-1SG (CA) to ensure compatibility.

What you get

• Self-indicating cartridge replacement for simple, on-time maintenance
• High-capacity purification without dependence on bottled water, contributing to lower ongoing costs
• Chemical-free purification powered by Structured Matrix technology
• Easy, do-it-yourself installation and cartridge changes
• Enhances taste and clarity for drinks, ice, cooking, and food preparation

Performance in real life

Whether you are cruising a coastline, camping near a harbor, or living aboard, this cartridge aims to deliver clean, fresh water for daily use. The X-1 Series purifiers are designed to support your on-board hydration needs, while the CA model note helps ensure you order the right version for California installations.

• Consistently filtered water ideal for coffee, tea, sauces, and pasta
• Great for beverages and ice where taste and clarity matter
• Supports reliable water supply during weekend trips or long voyages

Key specs at a glance

• Avg. capacity: ~1000 gallons per cartridge
• Flow rate: ~1 gpm
• Self-indicating replacement indicator
• CA model note: order RS-1SG (CA) for California residential models

Note: Benefits described reflect product features and typical usage. Actual results depend on water quality, system setup, and operating conditions. This replacement cartridge is intended to support your purification goals and everyday hydration needs, not to guarantee specific outcomes.