Overview
The Two Little Fishies Kalk Reactor 300 Check Valve, Part E, is a genuine replacement component for the KW Reactor 300 kalkwasser system. Designed to work with 1/2-inch ID hose, it restores reliable one-way flow control to keep your reactor operating as intended. This is the current replacement supplied by Two Little Fishies.
Key Features
- Genuine Two Little Fishies replacement check valve
- Designated as Part E for the KW Reactor 300
- Compatible with 1/2-inch ID hose
- Restores dependable one-way flow control
- Direct fit for the Reactor 300 kalkwasser system
Specifications
| Brand | Two Little Fishies |
|---|---|
| Part | Check Valve, Part E |
| Hose Compatibility | 1/2″ ID |
| Weight | 0.35 lbs |
| UPC | KW-300 Part E |
About Two Little Fishies
Two Little Fishies is a respected reef-keeping brand known for reactors, additives, and quality replacement parts. Visit Two Little Fishies.
Frequently Asked Questions
What hose size does it fit?
It is designed to work with 1/2-inch inside-diameter hose.
Why does it look different from the original?
This is the current replacement version supplied by Two Little Fishies, which may differ in appearance from the part originally pictured in the instructions, but it functions the same.



























Reviews
There are no reviews yet.