• 1.900" Diaphragm Bleeder, For Frankland Axles
• Bleeder works on same principal as a High Speed By-Pass
• Preset spring pressure against Diaphragm, controls amount of air to pass through port
• Releases air instantly in a 360° pattern
• No need to compensate for what you think it may bleed off at
• It repeats within 2/10 of a pound
• 4 different springs provide a range of 2 to 30 lbs