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), Pipe Fittings - Canada

Hourleey Solid Brass Bulkhead Fitting, 1/2 Female 3/4

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

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

Breezliy 2Pack 1/4 Female NPT and 1/2 Male GHT Bulk

Vis Brass Pipe Fitting 1/4 NPT Female Bulkhead Coupling, Anchor Coupler, 0.94 Length (Pack of 1) : Industrial & Scientific

Legines Brass Bulkhead Fitting 1/4 NPT Female Bulk

2 PCS Brass Bulkhead Coupling Both End 1/4 NPT Female,Outer

2 PCS Brass Bulkhead Coupling Both End 1/4 NPT Female,Outer

GASHER 2PCS Solid Brass Bulkhead Fittings Bulk Head Pipe Fitting 1/4 FNPT - 3/4 MUNS Length-0.95 Inch

KOOTNAS 2-Pack Solid Brass Bulkhead Fittings, 1/4 NPT

Bulkhead Barb Brass Mender Fitting 1/8” Hose ID Fuel

Gasket and nut for air tight seal through bulkhead. Joywayus female coupler for connecting 1/4 NPT fittings through a bulkhead. Operating

Joywayus Brass Full Thread Lengthened Bulkhead Fitting 1/4NPT Female x 1/2 Male Bulk Head Pipe Fitting Bulkhead Tank Fitting Coupler (Pack of 2)