Pentair Rainbow RTL/RCF Black Niche Only (R172610BK) aquacal Sodium bromide for compatible bromine-based

Sodium bromide for compatible bromine-based spa-care applications

and routine system service

and Jets applications where the original face has become worn

matching the part number 210-3910 and visual layout to the existing assembly is important before installation

Pentair Rainbow RTL/RCF Black Niche Only (R172610BK) aquacal Sodium bromide for compatible bromine-basedThis black RTL RCF niche is a replacement body component for compatible Rainbow skimmer or feeder related assemblies where the original niche has become damaged, faded, or structurally worn. The black finish helps maintain a clean, finished look when matched to existing dark equipment or deck side components. Use it during repair work where the surrounding assembly remains serviceable but the niche itself needs replacement. Before ordering, compare