Overview Product Description Product Code/SKU: PFBHU-M6Push-in Fittings (Metric)=M6Pneumatic Fitting - Push-In Bulkhead Union. Product Videos Custom Field Product Reviews Write a Review Write a Review × Pneumatic Fitting - Push-In Bulkhead Union M6 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *