Litorange 2 PCS Brass Bulkhead Coupling Both End 1/4 NPT Female,Outer Diameter 3/4-16UNF Brass Bulk Head Pipe Fitting Bulkhead Tank Fitting Coupler Coupling,15/16 Length (Pack of 2) : Industrial & Scientific

Hourleey Solid Brass Bulkhead Fitting, 1/2 Female 3/4 Male GHT Solid Brass Water Tank Connector Theaded with Rubber Ring (2-pack) : Industrial & Scientific

Joywayus 3/8 Female 1/2 Male Soild Brass Water Tank Connector Bulkhead Tank Fitting With 2 Rubber Ring Stablizing : Industrial & Scientific

CDQBWKJGFJ 1 Piece 1/4 x 1/4 Hose Barb Thru-Bulk Bulkhead Fitting Connector Straight Hex Union Brass : Industrial & Scientific

Gasket and nut for air tight seal through bulkhead. Joywayus female coupler for connecting 3/8 NPT fittings through a bulkhead. Operating

Joywayus 3/8 NPT Female x 3/4 Male Brass Bulkhead Fitting Bulk Head Pipe Fitting Bulkhead Tank Fitting Coupler

Litorange 2 PCS Brass Bulkhead Coupling Both End 1/4 NPT Female ,Outer Diameter 3/4-16UNF Brass Bulk Head Pipe Fitting Bulkhead Tank Fitting Coupler Coupling,15/16 Length (Pack of 2) : Industrial & Scientific

Fitvell Stainless Steel Bulkhead Fitting 1/4 NPT Female Bulked

Hooshing 1/4 NPT Female Brass Bulkhead Fitting 3/4 Outer Diameter Straight Thread Connector with Metal Wave Ring and Gasket Bulkhead Coupling : Industrial & Scientific

Legines 1/4 NPT Female Brass Bulkhead Coupling Tank

GOVALVE Brass Bulkhead Fitting - 3/8 NPT Female x 1/2 Straight Male Thread Water Tank Connector with 2 Rubber Rings for Water Tower Tank Barrels (pack of 1) : Industrial & Scientific