Air Lift Dominators Value pack 2 Dominator 2600 Lbs and 2 Dominator 2500 Lbs 1/2" Single Port Bags. Here is a 4 bag package for Air lift Brand Dominator bags ( p/n 58616 & 58343)

• Specifications Dominator 2500 Lbs Bag
  Dominator 2500
  
• Max height: 10.5"
  
• Compressed height: 2.8"
  
• Max diameter: 7.0"
  
• Max load @ 100 psi: 2600 lbs
  
• Design height: 5.5"-7.5"
  
• Air fitting size: 1/2"
  
• Top fastener: 3/8" - 16
  
• Bottom fastener: 3/8" - 16
  
• Mounting hole center: 1.75"
  
  Specification Dominator 2600 Lbs Bag
  Dominator 2600
  
• Max height: 12.5"
  
• Compressed height:2.8"
  
• Max diameter: 8.0"
  
• Max load @ 100 psi: 4000 lbs
  
• Design height: 6.0"-9.0"
  
• Air fitting size:1/2"
  
• Top fastener: 3/8" - 16
  
• Bottom fastener: 3/8" - 16
  
• Mounting hole center: 1.75"