Description
JBJ Reaction Pro 2 Replacement 13W UV-C Lamp RCP-13W — Restore Full UV Sterilization to Your RPC-175
The JBJ Reaction Pro 2 Replacement 13W UV-C Lamp RCP-13W is the genuine OEM replacement UV-C bulb engineered specifically for the JBJ Reaction Pro 2 RPC-175 canister filter. The JBJ Reaction Pro 2 Replacement 13W UV-C Lamp RCP-13W restores full UV sterilization performance to the RPC-175’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. For a large-volume system like the RPC-175 serving aquariums up to 175 gallons, a degraded UV-C lamp means thousands of gallons of water per day cycling through a sterilizer chamber that is no longer neutralizing pathogens effectively. Replacing the JBJ Reaction Pro 2 Replacement 13W UV-C Lamp RCP-13W annually is the single most important maintenance action for keeping the RPC-175’s UV sterilizer performing at full capacity.
Why Annual UV-C Lamp Replacement Matters for Large Aquarium Systems
- UV-C output degrades over time — lamps lose germicidal effectiveness significantly after 12 months of continuous use even when still visibly lit
- Higher stakes in large systems — the RPC-175 serves aquariums up to 175 gallons; a degraded lamp means a much larger water volume going unsterilized per cycle
- A degraded lamp provides false security — the filter appears to be sterilizing while bacteria, parasites, and algae spores pass through without being neutralized
- Annual replacement restores full 13-watt performance — the JBJ Reaction Pro 2 Replacement 13W UV-C Lamp RCP-13W returns the RPC-175’s sterilization output to factory specification
- Genuine OEM fit — engineered specifically for the RPC-175; no modification or adapter required
- Quick tool-free installation — replacement takes less than five minutes
- Protects high-value livestock — consistent UV sterilization is especially critical in reef aquariums, large fish-only systems, and tanks housing expensive or disease-sensitive inhabitants
Compatible Filter
The JBJ Reaction Pro 2 Replacement 13W UV-C Lamp RCP-13W is compatible exclusively with the JBJ Reaction Pro 2 RPC-175 canister filter. For the RPC-100, use the JBJ Reaction Pro 2 Replacement 7W UV-C Lamp RCP-7W.
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 critical, replacement every 8–10 months provides maximum protection. Keep a spare JBJ Reaction Pro 2 Replacement 13W UV-C Lamp RCP-13W on hand so replacement is never delayed and your large aquarium system is never left unprotected.
Technical Specifications
| Model | RCP-13W |
| Wattage | 13 Watts UV-C |
| Compatible With | JBJ Reaction Pro 2 RPC-175 canister filter |
| Replacement Interval | Every 12 months (8–10 months for heavily stocked or reef systems) |
| Installation | Tool-free; less than 5 minutes |
| UPC | 810067702034 |
| SKU | RCP-13W |
| Price | $34.00 |
For installation guidance, visit the JBJ Reaction Pro 2 product page.





