Description
JBJ Reaction Pro 2 Replacement 7W UV-C Lamp RCP-7W — Restore Full UV Sterilization to Your RPC-100
The JBJ Reaction Pro 2 Replacement 7W UV-C Lamp RCP-7W is the genuine OEM replacement UV-C bulb engineered specifically for the JBJ Reaction Pro 2 RPC-100 canister filter. The JBJ Reaction Pro 2 Replacement 7W UV-C Lamp RCP-7W restores full UV sterilization performance to the RPC-100’s built-in UV chamber — neutralizing free-floating bacteria, parasites, algae spores, and pathogens at the same level as when the filter was new. UV-C lamps do not last indefinitely. Even when a UV-C bulb still appears to be illuminated, its germicidal output degrades significantly over time — typically losing 40% or more of its effective UV-C output after 12 months of continuous operation. A lamp that appears on but has degraded output provides little to no actual sterilization benefit. Replacing the JBJ Reaction Pro 2 Replacement 7W UV-C Lamp RCP-7W annually is the single most important maintenance action for keeping the RPC-100’s UV sterilizer performing as intended.
Why Annual UV-C Lamp Replacement Matters
- UV-C output degrades over time — lamps lose germicidal effectiveness significantly after 12 months of use even when still visibly lit
- A degraded lamp provides false security — the filter appears to be sterilizing but pathogens, parasites, and algae spores pass through without being neutralized
- Annual replacement restores full performance — the JBJ Reaction Pro 2 Replacement 7W UV-C Lamp RCP-7W brings the RPC-100’s sterilization output back to factory specification
- Genuine OEM fit — designed and manufactured specifically for the RPC-100; no modification or adapter required
- Quick installation — replacement takes less than five minutes with no tools required
- Protects aquarium inhabitants — consistent UV sterilization reduces disease outbreaks, green water algae blooms, and free-floating pathogen load in the aquarium
Compatible Filter
The JBJ Reaction Pro 2 Replacement 7W UV-C Lamp RCP-7W is compatible exclusively with the JBJ Reaction Pro 2 RPC-100 canister filter. For the RPC-175, use the JBJ Reaction Pro 2 Replacement 13W UV-C Lamp RCP-13W.
When to Replace Your UV-C Lamp
JBJ Aquariums recommends replacing the UV-C lamp every 12 months regardless of visible output. For heavily stocked aquariums, reef systems, or tanks where disease prevention is a priority, replacement every 8–10 months provides maximum protection. Keep a spare JBJ Reaction Pro 2 Replacement 7W UV-C Lamp RCP-7W on hand so replacement is never delayed.
Technical Specifications
| Model | RCP-7W |
| Wattage | 7 Watts UV-C |
| Compatible With | JBJ Reaction Pro 2 RPC-100 canister filter |
| Replacement Interval | Every 12 months (8–10 months for heavily stocked systems) |
| Installation | Tool-free; less than 5 minutes |
| UPC | 810067702041 |
| SKU | RCP-7W |
| Price | $22.00 |
For installation guidance, visit the JBJ Reaction Pro 2 product page.





