Fairview RV Propane Two-Stage Automatic Changeover Regulator GR-9984 — Dual Tank, 11" WC, 345,000 BTU

The Fairview GR-9984 is a compact two-stage automatic changeover propane regulator that delivers a steady 11" water column pressure and up to 345,000 BTU to keep RV appliances running without interruption.

Built for life on the road, this dual-tank regulator automatically switches from your service tank to your reserve tank so stoves, furnaces, and water heaters continue working while you travel. Its two-stage design reduces high cylinder pressure down to a consistent low-pressure output, and the clear color indicator lets you monitor tank status at a glance. Constructed with corrosion-resistant materials and standard RV connections, the GR-9984 balances high flow capacity with rugged durability for seasonal use and long trips.

How does the GR-9984 keep propane flowing when a tank runs out?

The regulator contains an automatic changeover valve that senses when the primary tank is depleted and opens the reserve tank without manual intervention. This seamless switch prevents appliance interruptions and avoids cold-weather flow problems that can occur with undersized regulators.

• Automatic transfer from service to reserve tank
• Color indicator visibly signals empty tank status
• Reserve capacity maintained up to 260,000 BTU on the backup side

Will it handle multiple appliances at once during cold weather?

Yes — the GR-9984 is rated for high-capacity delivery and is engineered for reliable flow in low temperatures. The two-stage reduction keeps outlet pressure stable at 11" water column so ovens, furnaces, and water heaters receive steady fuel even in winter conditions.

• Maximum flow: 345,000 BTU per hour (service side)
• Reserve flow capacity: up to 260,000 BTU per hour
• Designed for improved cold-weather performance and high demand

How do I install and connect the regulator on my RV?

Installation uses common RV fittings but follow the product’s orientation and hose requirements for safety and performance. Mount the unit with the vent facing down and use 1/4" inverted flare hoses for the inlet connections; mounting bracket is sold separately.

• Dual 1/4" female inverted flare inlets (use 1/4" inverted flare hoses)
• 3/8" NPT (FPT) outlet for standard RV plumbing
• Mount with vent down; mounting screws not included; bracket extra

What maintenance or checks should I perform to keep it working?

Routine visual inspections and leak checks ensure long-term reliability. Look for corrosion, confirm the color indicator is visible, test for leaks after installation, and replace hoses or fittings that show wear.

• Regular leak-testing after any installation or hose replacement
• Inspect for damage, rust, or loose fittings before each season
• Keep vent clear and oriented downward to prevent moisture entry

Who is this for: The Fairview GR-9984 is aimed at RV owners, campers, and towing enthusiasts who need a durable, high-flow automatic changeover regulator for multi-appliance setups and cold-weather travel. It suits travel trailers and motorhomes that require a stable 11" water column output, dual-tank convenience, and standard 1/4" inverted flare inlet hookups. Choose this regulator if you want an easy-to-read indicator, strong cold-weather performance, and straightforward compatibility with common RV propane systems.