Inserts and Sleeves - Brass & PVC Fittings Collet Compression Sleeve Copper Air Brake Tube Brass Sleeve Delrin Sleeve for Brass Compression Fittings, Pastic Tubing and Supply Risers Escutcheon Insert - for Plastic Tubing and Compression Fittings Inserts - J844 Nylon Air Brake Tube Fittings J844 Nylon Air Brake Hose Tube Brass Sleeve Nut and Sleeve Plastic Sleeve for Plastic Hose SAE Brass Sleeve for Air Brake Hose End Self Align Precision Grip Sleeve CA360 Brass Spring Guard and Nut