Description MNPT = Male National Pipe Thread - NPT = National Pipe Thread 304 Stainless Steel Adaptor from standard food processing / milking clamp fitting to NPT. (Pipe Thread used in common plumbing) 1.5 inch clamp x 3/4 inch Male Pipe Thread Basic Econo style 4999-1000-915 Related clamps that fit this item; 1000-441 Econo Clamp for sanitary stainless steel ferrule 17130 H.D. Heavy Duty Clamp for sanitary stainless steel ferrule Clamp x MNPT adapters available; Basic Econo Style 1000-915b - 1.5 clamp x 1.0 NPT 1000-915c - 1.5 clamp x 3/4 NPT (this item) H.D. Style with Hex for wrench 1000-915 - 1.5 clamp x 1.0 NPT 1000-911 - 1.5 clamp x 1.5 NPT 1000-912 - 2.0 clamp x 2.0 NPT 1000-913 - 3.0 clamp x 3.0 NPT 1000-914 - 4.0 clamp x 4.0 NPT 1000-925 - 2.5 clamp x 2.0 NPT Reducing Adapters 1000-925 - 2.5 clamp x 2.0 NPT 1000-915 - 1.5 clamp x 1.0 NPT 1000-915b - 1.5 clamp x 1.0 NPT 1000-915c - 1.5 clamp x 3/4 NPT 1000-920 - 2.0 clamp x 1.0 NPT