VL-5-1/4-B VL-5-1/4-B-EX VL-5-1/4-EX VL-5-1/4-NPT VL-5-1/8 VL-5-1/8-B VL-5-1/8-B-EX VL-5-1/8-EX VL-5-1/8-NPT VL510001-1ZZ00-000