Features: Durable material Light weight and durability This is High quality ABS and metal material Easy installation, Excellent fitment and Superior Material Specifics: Type:Air Standard Leveling Height Control Valve Kit Condition: 100% Brand New Fitment Type: Direct Replacement Part Number:VS-227, 53321-Q120, 53321Q120, VS227 Fitment: All Hendrickson Suspension Applications, All 1980's Through Current Neway Trailer Air Suspensions, Most Other Trailer Air Suspensions. (for reference only) Installation Recommendations: When Not Exceeding The Maximum Movement Angle of 45 °, The Length Ratio L / A Should Be ≤ 1.2. The Length L Should Be Between 175 and 295 mm. If A Shorter Yaw is Used, The Height Valve Will Generate A Large Air Consumption. Neway suspensions will have to be measured from the bottom of the frame to the center of the axle. This is because they have an 8 1/2 inch, 10 1/2 inch and 17 1/2 inch hanger height. Colour:As Shown Material:ABS+Metal Package Contents: 2 set x Air Standard Leveling Height Control Valve Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.