An Introduction to Astrobiology

DERPIPE Forged Reducer Adapter Fitting - Stainless Steel 304 Reducing Pipe Connector, 3/4" NPT Female x 3/8" NPT Male (pack of 2)

Brass 3/4" NPT Male to 3/8" Female Reducer Bushing, Brass Pipe Hex Bushing NPT Male to Female Pipe Fitting Adapter for Reduce Pipe (3/4”mnpt-3/8”fnpt)

AVCRAY 3 Way Tee Reducer KF-50 to KF-25 Vacuum Fittings, ISO-KF Flange Size NW-50 to NW-25, Stainless Steel (KF50-KF25)

Cinnvoice 4 Pack 3" x 2" FNPT Galvanized Reducer, 300 PSI Pressure Rating for Plumbing, Industrial, and Fire Protection Systems

Sanitary Pipe Reducer 4 Inch to 2 Inch, Concentric Reducer for Tri Clamp, Stainless Steel 304 Hygienic Fitting, Tri Clamp Pipe Adapter for Food, Beverage, Pharmaceutical Industry

Cinnvoice 2 Pack FNPT Galvanized Reducer, 300 PSI Pressure Rating for Plumbing, Industrial, and Fire Protection Systems (3" X 2")

12pcs Grease Zerk Fittings, 1/4in-28 SAE Straight Thread Grease Nipples Zerk Tool with Wrench for Metric Automotive Machinery Gun and Industrial Equipment Extension 

1" NPT Male to 1/2" NPT Female Reducer Bushing, 304 Stainless Steel Pipe Hex Bushing NPT Male to Female Reducing Adapter Pipe Fitting for Reducing Pipe (1mnpt x 1/2fnpt)