These borosilicate glass vacuum-type adapters feature Standard Taper joints (top outer and bottom inner) and a sealed-in inner delivery tube on bottom joint which ends in a slanted drip tip. Designed with a side hose connector (Style A is pointed away from adapter) for connection to a vacuum source. Limited 90-day warranty included. Research, industrial and healthcare professionals rely on SP Scienceware for their sample handling needs. Sold worldwide, Wilmad-LabGlass brand laboratory glassware features over 7000 items including NMR and EPR consumables and specialty glassware, as well as custom fabrication for individual glassware, glass repair services and OEM glass parts. Bel-Art and H-B Instrument brand laboratory supplies complements Wilmad-LabGlass with over 5,000 items from safety wash bottles to fume hoods, thermometers, racks, desiccators, hydrometers, ice buckets, scoops and spoons.