Description
Marine-Grade Fuel Water Separator — Protect Your Engine, Save on Maintenance
The iFJF R12H is the upgraded, cost-saving version of the classic R12T marine fuel water separator. Unlike the R12T which requires replacing the entire housing, the R12H features a detachable internal filter element — simply swap the cartridge, reuse the aluminum housing, and cut long-term costs by up to 60%.
Key Features
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Detachable Spin-On Design — Replace only the filter element, not the entire unit. Quick tool-free cartridge swaps.
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Aluminum Alloy Body + Powder Coating — Superior corrosion resistance against seawater and harsh marine environments. Built to outlast iron/steel alternatives.
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15 GPH High Flow Rate — Engineered for high-performance marine and diesel applications. Maintains fuel pressure under load.
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10-Micron Advanced Filtration — High-capacity filter media removes water and particles as small as 10 microns for clean, water-free fuel delivery.
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Transparent Nylon Collection Bowl with Drain Valve — Visually inspect water accumulation and drain with a simple twist of the black valve.
What's Included (Complete Combo)
- 1 x R12H Fuel Water Separator Assembly (aluminum housing + base)
- 3 x Filter Elements (1 installed + 2 bonus spares)
- 4 x O-Rings (2 installed + 2 bonus spares)
- 2 x NPT/ZG1/4-19 Connection Fittings
- 2 x Plugs for unused ports
- Installation Instructions
Specifications
| Model |
R12H (R12T Upgrade) |
| Material |
Aluminum Alloy + Powder Coating |
| Flow Rate |
15 GPH (57 LPH) |
| Filtration |
10 Micron |
| Port Size |
NPT / ZG1/4-19 |
| Filter Type |
Spin-On, Replaceable Cartridge |
| Replaces Part # |
S3240, 120AT, 18-7987, RK10222, R12T |
| Applications |
Marine boats, diesel trucks, generators, oil storage equipment |
Easy Installation — No Professional Tools Required (Boats)
Designed for DIY boat owners. Comes with detailed step-by-step instructions:
- Apply fuel to both O-rings for lubrication before assembly
- Mount the unit securely — use screws on a wood board (min 1cm) with marine adhesive if you prefer not to drill into your boat
- Fill the filter housing completely with fuel before starting the engine to prevent air-lock
- Periodically check the collection bowl and drain accumulated water via the drain valve
For automotive/diesel truck installation, professional installation is recommended.
Frequently Asked Questions
Q: What is the difference between R12H and R12T?
A: The R12T has a sealed, non-removable filter element — you must replace the entire housing. The R12H has a detachable cartridge: keep the housing, replace only the internal filter, saving you money every service.
Q: Will this fit my boat?
A: As long as you have sufficient mounting space, it works for boats, cars, diesel trucks, and fuel storage equipment. Ports: NPT/ZG1/4-19.
Q: Why won't my engine start after installation?
A: You must fill the filter housing completely with fuel before starting. An empty filter causes air-lock and starting failure.
Q: How often should I replace the filter element?
A: Every 100 hours of operation or annually, whichever comes first. Check the transparent bowl regularly for water accumulation.
Q: Is this compatible with Racor / Sierra / Yamaha systems?
A: This replaces S3240 and 120AT filter elements commonly used across marine brands. Verify your port size (NPT/ZG1/4-19) and mounting space before ordering.
WHOLESALE INQUIRIES
Bulk pricing available for marine dealers, fleet operators, and distributors. Contact us for wholesale discounts.
