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  • Home
  • Products
    • Agriculture >
      • Bunker Silo
      • Bunker Silo Center Walls
      • Feed Bunk {Type-H}
      • Feed Bunk {Type-J}
      • Foot Baths
      • Manure Pits
    • Septic Systems >
      • Precast Septic Tanks
      • Tank Risers & Covers
      • Tank Filters
      • Zabel Filters
      • Extend & Lok
      • Exterior Pump Basin
      • H-20 Septic Tanks
      • Grease Trap Tanks
      • Two Compartment Tanks
      • Siphon Tanks
      • Plastic Septic Tanks
      • Presby Maze Tank
      • Distribution Boxes
      • Flow Controller
      • Enviro-Septic
      • Infiltrators
      • Ameration Chambers
      • Dry Well
    • Bulkheads
    • Carbon Filters
    • Culverts >
      • Plastic Culverts
      • Metal Culverts
      • Drainage Coils
    • Drains >
      • TUF-TITE TRENCH DRAIN
      • Polylok Drain Box & Drain Valve
    • Fernco Fittings
    • Geotextiles | Fabric >
      • Road Stabilization
      • Filter Fabric
      • Silt Fabric
      • Safety Fence
      • Erosion Control
      • Geogrid
    • Manholes >
      • Sewer Manholes
      • Catch Basins
      • Manholes Items >
        • Joint Sealant
        • MH Steps
        • Covers
        • Grates
        • Lift System
    • Park Benches | Tables
    • Curbs | Piers
    • Pump Systems >
      • Pump Tanks
      • Effluent Pumps
      • Sewage Pumps
      • Grinder Pumps
      • Orfice Sheild
      • Pump Accessories >
        • Alarms
        • Single & Double Floats
        • Junction Boxes
    • PVC Pipe & Fittings
    • Well Tile
    • Wood Furnace Slabs
  • Contact Us

Distribution  boxes

5 HOLE DISTRIBUTION BOX

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7 ​HOLE DISTRIBUTION BOX

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13 ​HOLE DISTRIBUTION BOX


18 ​HOLE DISTRIBUTION BOX

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NOTES:

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

FLOW EQUALIZERS

Picture
Picture
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


Physical Address

2878 Route 18
​Waterford, VT 05819

Phone

802.748.2310
​888.779.2085​ fax802.748.2648 

Mailing Address

PO Box 631
St. Johnsbury, VT 05819
© COPYRIGHT 2017. Calco Precast Concrete Inc.