RLSS FR4 4 Inch Media ReactorRLSS is known for their innovative quality products. The FR4 Media reactor is no exception and is suited for use with GFO, Carbon or any of your favorite chemical filter Media.
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TrustScore 4.5 | 7,300+ reviews
Ali H.
Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.
1 day ago
Ayesha M.
The product exactly matches the description. Very satisfied with my purchase.
