Vixen Air 1/2" NPT Single Air Port Suspension Air Spring/Air Bag Quad Pack VXD2500QP

These air bags can hold up to 600 PSI and they are extremely durable and resistant to damage from wear and tear, inflation shock, or just outright abuse. Their outstanding construction provides extreme durability and reliability. Featuring a large ½" air port for fast response and a stroke of 7.7" for the best performance. Definitely air bags designed to outperform! Quad Pack for Front, Back, Side-to-Side Its always recommended that you match your front two or rear two air springs in a 2 or 4-way set up. Buying all four at the same time not only saves you money, but ensures you get pairs of identical air springs. ½" NPT Air Port These air springs feature an extra large ½" NPT port for installation. Be sure to use ½" air line for maximum performance. 2500-Style Bolt Pattern When used in a 4 spring setup on a truck or SUV, 2500-style bags are normally used for the front two springs. They feature top bolt points that are 1-¾" apart and a single centered bolt point at the bottom. Suspension Air Spring (Quad Pack) ½" NPT Single Air Port 3/8-16" UNC Mounting Threads 600 PSI Maximum Restrained Pressure 294-2096 lbs Load Range 7.7" Usable Stroke More Responsive than Comparable Sized Air Springs Dimensions: Height: 4" (Min) - 9.5" (Max) Diameter: 6" (0 PSI) - 7" (100 PSI) Never exceed more than truck manufacturers maximum load recommendations.