OKBA External RV Dual Water Filter System, Two Filters with Mounting Bracket, 5µm + 0.5µm Carbon Block, Brass Fittings

This compact exterior filtration assembly combines a coarse 5-micron prefilter with a tight 0.5-micron carbon block second stage to capture larger debris and much smaller particulates while improving taste and odor. Built with reinforced plastic housings, brass fittings and a heavy-duty mounting bracket, the OKBA dual filter is designed for permanent or semi-permanent installation at your inlet point so your on-board water supply gets a noticeable uplift in clarity without complicated plumbing modifications.

How does the two-stage filter improve water at my campsite or marina?

The system uses sequential filtration: the 5-micron cartridge traps sand, rust flakes and visible particulates, then the 0.5-micron carbon block captures finer sediment and many microscopic particles while reducing chlorine taste and odor. This layered approach protects the finer cartridge and extends overall filter life.

• First stage: 5-micron pleated filter removes larger debris and particulates.
• Second stage: 0.5-micron carbon block catches finer sediment and improves taste.
• Sequential flow preserves filter life and reduces maintenance frequency.

Is installation difficult for an RV or boat owner?

Installation is straightforward and requires no special tools beyond the supplied wrench for housing changes. The unit mounts externally using the included bracket and connects directly to standard 3/4" garden hose fittings, so most users can fit it in minutes and carry on using their existing hoses and fittings.

• Mounting bracket included for secure external placement on RV or hull.
• Brass fittings ensure reliable hose connections and leak resistance.
• Wrench provided for quick cartridge swaps and tight seals.

What materials and build quality should I expect?

OKBA constructed this filter with thick, impact-resistant plastic housings and corrosion-resistant brass hardware suitable for marine and outdoor exposure. The sturdy bracket and robust canisters are intended for repeated servicing and long-term use in mobile environments where vibration and weather are factors.

• Durable plastic housings designed to withstand outdoor conditions.
• Brass fixtures for corrosion resistance at hose connections.
• Heavy-duty bracket keeps the assembly stable during travel and docking.

How often will I need to change the filters?

Replacement frequency varies with source water quality and volume used; typical light to moderate use often requires changing cartridges every 3–6 months. Heavily sedimented or frequently used connections may need earlier replacement. Always inspect cartridges visually and follow local water quality cues.

• Change schedule depends on water quality and consumption levels.
• Look for reduced flow or visible cartridge discoloration as change indicators.
• Both cartridges are user-replaceable; the included wrench simplifies swaps.

Who this product is for: The OKBA External RV Dual Water Filter System is for RV owners, boaters and marine hobbyists who want a durable, easy-to-install exterior filtration point to reduce sediment and improve on-board water taste without reworking plumbing. It’s well suited to seasonal campers, long-term liveaboards, and anyone connecting to variable shore or campground water sources who values clear, fresher-tasting water and simple maintenance.

• Package contents: two canisters (assembled), one 0.5-micron carbon block, one 5-micron prefilter, mounting bracket, and filter-wrench.
• Connections: compatible with standard 3/4" garden hose fittings for quick hookup.
• Applications: RVs, camper trailers, motorhomes, boats, marinas and temporary shore connections.