PN#016940  SKU#11032  Push-Lock Air Brake Fitting, Union Tee. Material: Composite. Tube Size: 1/4″. Designed for use with SAE J844 nylon tubing. DOT 49 CFR 571.106 compliant. High strength composite fittings offer weight savings over all brass style fittings—currently being used by many OE vehicle manufacturers. Fittings meet performance requirements as stated in SAE J1131. Operating temperatures from -45° F to +140° F. Maximum operating pressure 145 psi. Engineered tube retention system and seal design offers superior holding and side load retention capabilities. Positive release bushing for easy insertion and removal of tubing. Composite body.