5 HOLE DISTRIBUTION BOX

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7 ​HOLE DISTRIBUTION BOX

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13 ​HOLE DISTRIBUTION BOX

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18 ​HOLE DISTRIBUTION BOX

NOTES:

• 1 1/2” Sump
• 1” DIfference from Inlet to Outlet
• Plastic Knockouts for 4” Pipe

FLOW EQUALIZERS

Patented weir opening maintains equal flow even in unlevel D-Boxes that continue to move their entire lives. Simple to install, just push into any 4'' pipe, SCH. 40, SDR 35, and thin wall. Adjustment knob moves opening up or down in 1/16'' increments; total movement is 7/8''. It has a watertight fit and is made with tough engineered plastic that will not corrode. It can be installed without tools. Patent No# 5,154,353; 5,107,892; 5,680,98

Features:

• Maintains equal flow from distribution box
  
• ​Automatically compensates for box movement
  
• Engineered plastic is non-corrosive
  
• ​Extends septic system life
  
• Inserts without tools
  

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