# konros KOPA4 RV Propane Regulator, 2-Stage Auto Changeover with Dual Gauges Monitor both RV propane tanks and switch automatically when one runs out with the konros KOPA4, featuring two 18-inch braided hoses. - [Original product page](https://www.ofertitastop.com/us/product/konros-kopa4-rv-propane-regulator-stage) - [View offer](https://www.ofertitastop.com/us/visit/konros-kopa4-rv-propane-regulator-stage) - Market: US - Language: en-US - Currency: USD - Product updated: 2026-10-19T06:45:49.359Z - Brand: konros - Model: KOPA4 - SKU: ofertitastop-us-143887 - Category: Hardware > Hardware Pumps - Source store: amazon US - Active deal: Yes - Price: 28.69 USD - Previous price: 35.99 USD - Discount: 20% - Rating: 4.1 / 5 - Reviews: 47 Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store. ## Description Dual gauges make it easier to check both propane tanks at a glance, while automatic changeover is designed to keep gas flowing when the primary tank runs out. The konros KOPA4 is a two-stage regulator for dual-tank RV propane systems. Its two braided stainless steel hoses connect the tanks to the regulator. Color indicators and glow-in-the-dark dials help with level checks, including after dark. ## How it fits This regulator is designed for dual-tank setups in RVs, campers, and travel trailers. When the primary cylinder runs out, the auto-changeover function switches to the full tank, so you can keep using propane appliances such as a refrigerator, furnace, water heater, or generator without making a manual tank change at that moment. It’s a practical replacement approach for owners updating a regulator and its tank connections together, rather than sourcing a regulator and hoses separately. Each tank has an individual gauge. The color indicator changes from green to red when a cylinder needs refilling, helping you see which tank needs attention. For use at night, the glow-in-the-dark dial makes the gauges easier to check. The system is intended for standard dual-tank RV propane setups, confirm that your fittings match before installation. ## Strengths Two-stage regulation and automatic tank changeover bring the regulator and tank monitoring together in one setup. That’s useful on longer trips or during cold-weather camping, when propane may be needed for multiple appliances and keeping track of the active tank matters. Instead of waiting until a tank is empty to inspect it, you can check both gauges and plan a refill based on the indicator. The two 18-inch stainless steel braided pigtail hoses have QCC1 fittings. Brass fittings and the included sealing tape and wrench support a replacement installation, whether you’re refreshing an older RV setup or replacing worn hoses and a regulator. The hose length provides a direct connection between the tanks and regulator within a compatible dual-tank arrangement. Buyer feedback highlights the regulator as a suitable replacement part, with positive comments about its quality and value. These are customer impressions, the key practical distinction is the combination of automatic changeover, separate tank gauges, and two included braided hoses. ## Specifications - Type: Two-stage RV propane regulator with automatic changeover - Compatibility: Dual-tank RV propane systems, verify fitting type before purchase - Connectivity: 1/4-inch SAE inverted flare inlet and 3/8-inch NPT female outlet, hoses have QCC1 fittings - What’s included: Regulator, two 18-inch braided stainless steel pigtail hoses, sealing tape, and wrench - Dimensions: 3.54 x 2.75 x 39.37 inches - Weight: 2.48 pounds - Reference: KOPA4 ## What to clarify How does the automatic changeover work? When the primary cylinder runs out, the regulator is designed to switch to the full tank. The gauges help you identify the tank that needs refilling. Can I use it to replace an existing RV regulator? It is intended for standard dual-tank RV propane systems and includes two hoses for connecting the tanks. Match the system’s fitting type to the listed 1/4-inch SAE inverted flare inlet and 3/8-inch NPT female outlet before installation. What should I do after installing it? Perform a soapy water leak test after installation. This is a practical safety check for the propane connections before using the setup. ## Should you buy it? The konros KOPA4 is a useful fit for RV and travel-trailer owners who want automatic changeover between two propane tanks and a clear way to monitor each cylinder. Its paired gauges, night-visible dials, and two braided pigtail hoses make it a coordinated replacement for compatible dual-tank systems, with the fittings and post-installation leak check serving as key parts of setup. ## Images ![konros KOPA4 RV Propane Regulator, 2-Stage Auto Changeover with Dual Gauges — 1](https://www.ofertitastop.com/i/zedohGzup7C1KpNPjvmQFPt3oz_o27mkukHs40tE_gtEsiANqxlhVkmCP2dO9wpn0EJO-DswsoUGkCRwSCBYyIpFNaEXBbsxMFMwJHKRV-IY0VvIyWy-JFNVEg.jpg) ![konros KOPA4 RV Propane Regulator, 2-Stage Auto Changeover with Dual Gauges — 2](https://www.ofertitastop.com/i/G6v-UqgpOcCYBhvbQTaYCd3XOztatGp6zsVtsLv8QQoxSYiB1jU7nx4P5fzLP8fTYKF0Djpfedsb7YUk0k3jhsPiPlHpj1T0JIpKZ1iL1KRJX0vAq0ot4hZb0Q.jpg) ![konros KOPA4 RV Propane Regulator, 2-Stage Auto Changeover with Dual Gauges — 3](https://www.ofertitastop.com/i/xRgL9lAkRzN-98i59Q7AaM0Dl-MTfDn8yv7RKWHqnZBPXA-N9SBnXZTv7ZMHo0ylRWf7UBUPm6l1ITShUc1IWgPjf5aINUl6ENRZjtynH1PwaEPkRV3GLcHJSw.jpg) ![konros KOPA4 RV Propane Regulator, 2-Stage Auto Changeover with Dual Gauges — 4](https://www.ofertitastop.com/i/IXPgBtsbfJodIoh7Emk85OsZjyOA9x7vgZct9WIkn3etlVyAORfQBC4qoj2J6I0pJg4FSD7M7SYc4sl8HnnMfSIGaFWa1zNaPYeU8LJh-vdiFCGrFfUqbacikg.jpg) ![konros KOPA4 RV Propane Regulator, 2-Stage Auto Changeover with Dual Gauges — 5](https://www.ofertitastop.com/i/Rbtfh9lg1ndvLeu3WGrwV-rNamxTyk59Ct58OErI_aKxk55bNp4vFej3Xqc9ei6UYwOxGdVg0B7hCogYLaXEu3zhfbzSe21bVMsEJ6Vt8KknJEJfqCcwMNmDVQ.jpg)