NAPCO’s D2241/RJ Certa-Lok® Yelomine® PVC Pressure Pipe is manufactured to meet the demands of today’s municipal needs for water and wastewater applications. Certa-lok pipe utilizes precision-machined grooves on the pipe and in both sides of the coupling which, when aligned, allow a spline to be inserted, resulting a fully circumferential restrained joint. Flexible elastomeric gaskets in the coupling provide a hydraulic seal.
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