Appleton ST150 Liquid Tight Connector. Appleton® Conduit Connector Liquidtight Oiltight Raintight Series: ST Series 1-1/2 in Straight For Use With: Liquidtight Flexible Metallic Conduit Malleable Iron Triple Coated 2.25 in L x 2.63 in H. Additional Description: APLE-ST150 1-1/2 IN LFMC CONN. Catalog Description: ST Series Straight Liquidtight Connector With Plain Throat Size: 1-1/2 IN Connection: Threaded X Compression Material: Malleable Iron Finish: Chromate Epoxy Powder Coat/Zinc Electroplated Dimensions: 2-1/4 IN Length X 2.63 IN Height.