Check Valve, Secondary Inlet Back Catalog number: 11-1600 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended PL7025600 MarvelXACT PLS 25µm x 600mm Price on request CTS-5656 Sapphire Plunger Price on request CTS-21089 Needle Seal (For pH 1-14, for operation up to 130 Price on request